CN102457386A - Multicast message transmission method in bidirectional PIM (Personal Information Management) of communication equipment and communication equipment - Google Patents
Multicast message transmission method in bidirectional PIM (Personal Information Management) of communication equipment and communication equipment Download PDFInfo
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Abstract
The invention discloses a multicast message transmission method in bidirectional protocol-independent multicast PIM (Personal Information Management) of communication equipment. The method comprises the following steps of: establishing a multicast transmission list by route equipment according to a route protocol; when receiving a multicast message, revising virtual local area network (VLAN) information or virtual private network (VPN) information of a message when the route equipment judges that an interface reached by the multicast message is the interface needing to be reached by the multicast message according to an access control list (ACL) sent by each interface, so as to match the information with the established multicast transmission list; and transmitting the multicast message with the revised information at a corresponding output interface of the multicast transmission list matched with the multicast message. The invention further discloses the communication equipment; with the adoption of the multicast message transmission method and the communication equipment of the invention, the multicast message transmission in the bidirectional PIM can be realized, the multicast transmission list does not need to be established by the communication equipment according to the quantity of VLAN openings of an input interface, so that hardware transmission resources are saved.
Description
Technical field
The present invention relates to the multicast message processing technology field, particularly method for forwarding multicast message and communication equipment in a kind of bidirectional protocol independent multicast (PIM) of communication equipment.
Background technology
PIM be a kind of utilization by static routing or arbitrarily the unicast routing table that generated of unicast routing protocol be the technology that multicast provides route, the routing device in the PIM networking is as the incoming interface of routing device by the VLAN mouth.For the multicast routing protocol of general PIM (non-bidirectional pim), only stored a multicast forward table that the VLAN mouth is corresponding in the routing device.When multicast message arrived this routing device, inquiry can forward this multicast message multicast forward table that should the VLAN mouth in this routing device.
Bidirectional pim is the two-way PIM that can transmit of a kind of forward-path; Generally speaking; Routing device in the bidirectional pim networking has a plurality of incoming interfaces of a plurality of VLAN mouths as routing device; In order to realize the bidirectional pim function, all want and can transmit for the multicast message that gets into from each incoming interface, thereby can be according to the VLAN mouth number as incoming interface; In routing device, all create a multicast forward table separately, thereby make that can both inquire corresponding multicast forward table from the multicast message of each VLAN mouth entering transmits for each VLAN mouth.Yet; Under the situation more as the VLAN mouth number of incoming interface; Existing method needs to create more multicast forward table in routing device; Also just taken more hardware (routing device) and transmitted resource, especially transmitted under the situation of resource-constrained, restricted the use of existing method when hardware.
Summary of the invention
In view of this, the invention provides method for forwarding multicast message in a kind of bidirectional pim of communication equipment, not only can realize that the multicast message in the bidirectional pim is transmitted, and save hardware and transmitted resource.
The present invention also provides a kind of communication equipment, not only can realize that the multicast message in the bidirectional pim is transmitted, and save hardware and transmitted resource.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
Method for forwarding multicast message among a kind of bidirectional protocol independent multicast PIM of communication equipment, the interface receiving group message of this communication equipment, this method comprises:
According to the access control list ACL that is handed down to said interface, when confirming that said interface is the actual incoming interface of said multicast message, the network identity of said multicast message is modified as the corresponding network identity of Rendezvous Point at said interface place;
Search corresponding outgoing interface according to the source address in the said multicast message, multicast group destination address and amended network identity, said multicast message is transmitted through the said outgoing interface that finds.
Before each interface of said communication equipment received the step of the multicast message that is sent by transmit leg, said method also comprised:
Dispose the corresponding network identity of said interface place Rendezvous Point; Wherein, the network identity that each said Rendezvous Point is corresponding is different from the network identity of each said interface;
The said ACL that will dispose after the said ACL corresponding with each said interface also will dispose is handed down to each corresponding said interface;
The configuration multicast forward table wherein, comprises the corresponding network identity of Internet Protocol IP address, source, multicast group purpose IP address and said interface place Rendezvous Point and the index corresponding relation of said outgoing interface at least in the said multicast forward table.
Said network identity is the virtual LAN VLAN sign; Wherein,
Said actual incoming interface with said interface and said multicast message matees; When definite said interface is the actual incoming interface of said multicast message; The step that the network identity of said multicast message is modified as the corresponding network identity of the Rendezvous Point at said interface place comprises: the VLAN sign and the VLAN sign in the said multicast message of said interface are mated, if consistently confirm that then said interface is the actual incoming interface of said multicast message; VLAN in said multicast message sign is revised as the corresponding VLAN sign of said interface place Rendezvous Point;
The said outgoing interface of searching correspondence according to the source address in the said multicast message, multicast group destination address, amended network identity: confirm source address, multicast group destination address and the definite said outgoing interface index of amended VLAN sign in the said multicast message according to said multicast forward table, according to the said outgoing interface of confirming of said outgoing interface index search.
Said network identity is the virtual private network VPN sign; Wherein,
Said actual incoming interface with said interface and said multicast message matees; When definite said interface is the actual incoming interface of said multicast message; The step that the network identity of said multicast message is modified as the corresponding network identity of the Rendezvous Point at said interface place comprises: the VPN sign and the VPN sign in the said multicast message of said interface are mated, if consistently confirm that then said interface is the actual incoming interface of said multicast message; VPN in said multicast message sign is revised as the corresponding VPN sign of said interface place Rendezvous Point;
Said step of searching corresponding outgoing interface according to the source address in the said multicast message, multicast group destination address, amended network identity comprises: confirm that according to said multicast forward table source address, multicast group destination address and amended VLAN sign in the said multicast message confirm said outgoing interface index, according to the said outgoing interface of confirming of said outgoing interface index search.
A kind of communication equipment is used for transmitting bidirectional protocol independent multicast PIM multicast message, each interface receiving group message of this communication equipment, and this communication equipment comprises:
Access control unit is used for according to being handed down to the access control list ACL of said interface, when confirming that said interface is the actual incoming interface of said multicast message, the network identity of said multicast message is modified as the corresponding network identity of Rendezvous Point at said interface place;
Retransmission unit, the source address, multicast group destination address and the amended network identity that are used for according to said multicast message are searched corresponding outgoing interface, and said multicast message is transmitted through the said outgoing interface that finds.
Said communication equipment also comprises:
First dispensing unit is used to dispose the corresponding network identity of said interface place Rendezvous Point, and wherein, the network identity that each said Rendezvous Point is corresponding is different from the network identity of each said interface;
Second dispensing unit is used to dispose the ACL of each said interface and is handed down to each said interface;
The 3rd dispensing unit; Be used for according to first dispensing unit network configured sign configuration multicast forward table; Wherein, comprise the corresponding network identity of Internet Protocol IP address, source, multicast group purpose IP address and said interface place Rendezvous Point and the index corresponding relation of said outgoing interface in the said multicast forward table at least.
Said communication equipment also comprises:
Memory cell is used to store multicast forward table and the outgoing interface tabulation that said the 3rd dispensing unit disposes; Wherein, said outgoing interface list records said outgoing interface should with the corresponding relation of said outgoing interface.
Said network identity is VLAN ID or VPN sign.
Said access control unit comprises:
The coupling subelement is used for the VLAN sign of said interface is mated with the VLAN sign of said multicast message, confirms then that as if consistent said interface is the actual incoming interface of said multicast message;
Revise subelement, be used for when said matching unit confirms that said interface is said actual incoming interface, the sign of the VLAN in the said multicast message being revised as the corresponding VLAN sign of said interface place Rendezvous Point; Wherein,
Said retransmission unit is confirmed source address, multicast group destination address and the definite said outgoing interface index of amended VLAN sign in the said multicast message according to said multicast forward table, in said outgoing interface tabulation, searches said outgoing interface according to the said outgoing interface index of confirming.
The coupling subelement also is used for the VPN sign of said interface is mated with the VPN sign of said multicast message, confirms then that as if consistent said interface is the actual incoming interface of said multicast message;
Revise subelement, also be used for when said matching unit confirms that said interface is said actual incoming interface, the sign of the VPN in the said multicast message being revised as the corresponding VPN sign of said interface place Rendezvous Point; Wherein,
Said retransmission unit is confirmed source address, multicast group destination address and the definite said outgoing interface index of amended VPN sign in the said multicast message according to said multicast forward table, in said outgoing interface tabulation, searches said outgoing interface according to the said outgoing interface index of confirming.
In sum; Method for forwarding multicast message that the present invention adopted and system; During interface that to be the interface of judging said multicast message arrival according to the ACL that issues for each interface through communication equipment should arrive for this multicast message; The vlan information of the said multicast message that receives or VPN information are revised as reservation vlan information or the VPN information of the RP at interface place, search the corresponding outgoing interface of revising after vlan information or the VPN information of multicast message through the multicast forward table of creating and transmit.Therefore, the inventive method not only can realize that the multicast message in the bidirectional pim transmits, and communication equipment need not to create multicast list according to the VLAN mouth number of incoming interface, transmits resource thereby saved hardware.
Description of drawings
Fig. 1 is the workflow diagram of method for forwarding multicast message embodiment in the bidirectional pim of the present invention;
Fig. 2 is the composition structural representation of the communication equipment in the bidirectional pim of the present invention.
Embodiment
In order to solve the problem that exists in the prior art; Method for forwarding multicast message that the present invention adopted and communication equipment; During interface that to be the interface of judging said multicast message arrival according to the ACL that issues for each interface through communication equipment should arrive for this multicast message; The vlan information of the said multicast message that receives or VPN information are revised as reservation vlan information or the VPN information of the RP at interface place, search the corresponding outgoing interface of revising after vlan information or the VPN information of multicast message through the multicast forward table of creating and transmit.Therefore, the inventive method not only can realize that the multicast message in the bidirectional pim transmits, and communication equipment need not to create multicast list according to the VLAN mouth number of incoming interface, transmits resource thereby saved hardware.
Based on above-mentioned introduction, the concrete realization of scheme according to the invention comprises:
The interface receiving group message of communication equipment according to the ACL that is handed down to said interface, when confirming that said interface is the actual incoming interface of said multicast message, is modified as the network identity of said multicast message the corresponding network identity of Rendezvous Point at said interface place; Search corresponding outgoing interface according to the source address in the said multicast message, multicast group destination address and amended network identity, said multicast message is transmitted through the said outgoing interface that finds.
For making the object of the invention, technical scheme and advantage clearer; To combine accompanying drawing and specific embodiment that the present invention is done to describe in detail further below; Wherein the communication equipment in the present embodiment is a routing device; But the communication equipment among the present invention can also other have the equipment of routing function, like switch.
Fig. 1 carries out the workflow diagram that the bidirectional pim multicast message is transmitted for the interface receiving group message of routing device among the present invention, routing device.As shown in Figure 1, this flow process comprises:
Step 101:, when confirming that interface is the actual incoming interface of multicast message, the network identity of multicast message is modified as the corresponding network identity of Rendezvous Point at interface place according to the ACL that is handed down to interface.
Before this step, need dispose the ACL that each interface belongs to a corresponding network identity of Rendezvous Point RP (Rendezvous-Point) on the routing device, dispose after the corresponding ACL of each interface also will dispose and be handed down to each corresponding interface, dispose multicast forward table.
Wherein, owing under a multicast group a plurality of interfaces can be arranged, and a plurality of multicast group is corresponding to a RP.So each interface place Rendezvous Point is exactly the corresponding RP of multicast group under each interface.The interface of routing device both can be DF (Designated Forwarder, given transmission person) mouthful, also can be RPF (Reverse PathForwarding, inverse path is transmitted) mouthful.Each network identity that each RP of configuration is corresponding is a VLAN ID who keeps in advance or a VPN ID who keeps in advance, makes that the VLANID or the VPN ID of each interface is different from each RP corresponding VLAN ID or VPN ID on the routing device.
What comprise among the ACL usually is trigger condition and action, promptly carries out corresponding the processing when confirming to meet trigger condition through mating.In the present embodiment; The trigger condition of ACL is whether VLAN ID or the VPN ID in the multicast message that receives of matched interfaces be consistent with the VLAN ID or the VPNID of interface; If unanimity representes that then the interface of receiving group message is the actual interface that this multicast message should arrive; Then will carry out corresponding the processing is: VLAN ID in the multicast message that receives or VPN ID are revised as the corresponding VLAN ID or the VPN ID of RP at interface place, thereby accomplish RPF (the Reverse Path Forwarding) inspection to the multicast message that each interface received through the ACL that gives each interface that issues; If inconsistent, then not through rpf check, carry out corresponding existing processing, as abandon this multicast message.
At least comprise source Internet Protocol (IP) address (s), multicast group purpose IP address (g) and outgoing interface index in the multicast list, further, also comprised Virtual Local Area Network ID or VPN(Virtual Private Network) ID in the multicast list.
Multicast group with under the DF mouth 1 of routing device is an example corresponding to RP1, and the implementation of above-mentioned steps 101 is described:
If the network identity that RP1 is corresponding is VLAN 21, be different from the VLAN10 of DF mouth 1 and the VLAN ID of other interfaces.When DF mouth 1 is received the multicast message that contains network identity VLAN 10, judge that according to the ACL that is handed down to DF mouth 1 VLAN10 in the multicast message is consistent with the VLAN10 of DF mouth 1, the VLAN10 in the multicast message of then DF mouth 1 being received is revised as VLAN20.
If the network identity that RP1 is corresponding is VPN 41, be different from the VPN30 of DF mouth 1 and the VPN ID of other interfaces.When DF mouth 1 is received the multicast message that contains network identity VPN30, judge that according to the ACL that is handed down to DF mouth 1 VPN30 in the multicast message is consistent with the VPN30 of DF mouth 1, the VPN 30 in the multicast message of then DF mouth 1 being received is revised as VPN 41.
What also need explain is; In this step; Routing device is the different different multicast list of RP configuration; And that the network identity in the multicast list of different RP comprises is different VLAN ID or VPNID, and VLAN ID in the different multicast lists of same RP or VPNID are identical, and different is other forwarding match information in the multicast list.Follow-up is that example describes with a RP all, and the concrete implementation procedure of a plurality of RP and the concrete implementation procedure of a RP are similar, so no longer it is given unnecessary details.
Step 102: search corresponding outgoing interface according to the source address in the multicast message, multicast group destination address and amended network identity.
In this step, need to prove, also comprised source IP address, purpose IP address, VLAN ID and VPN ID in the information of multicast message.When comprise in the multicast forward table be VLANID the time; When routing device matees the forwarding-table item in multicast message and the multicast forward table; The VPN information that can ignore multicast message; Only confirming corresponding outgoing interface index, in the outgoing interface tabulation, searching corresponding outgoing interface at the outgoing interface index according to the S in the multicast message, G, amended VLAN ID; When comprise in the multicast forward table be VPN information the time, then carry out similar operation.
What also need explain is; Outgoing interface tabulation, the S according in the multicast message, G, VLAN ID/VPN ID and the multicast forward table of corresponding relation that configuration comprises outgoing interface index and outgoing interface confirmed the outgoing interface index and can have been realized through having mode now according to outgoing interface index search outgoing interface, repeated no more here.
Step 103: multicast message is transmitted from the outgoing interface of multicast forward table.
So far, promptly accomplished the whole workflow of method for forwarding multicast message embodiment of the present invention.
Based on said method, Fig. 2 carries out the composition structural representation of the communication equipment that the bidirectional pim multicast message transmits, each interface receiving group message of this communication equipment for the present invention.As shown in Figure 2, this communication equipment comprises: access control unit 21 and retransmission unit 26, wherein,
Said access control unit 21 is used for according to being handed down to the ACL of said interface, when confirming that said interface is the actual incoming interface of said multicast message, the network identity of said multicast message is modified as the corresponding network identity of Rendezvous Point at said interface place.
Said retransmission unit 26, the source address, multicast group destination address and the amended network identity that are used for according to said multicast message are searched corresponding outgoing interface, and said multicast message is transmitted through the said outgoing interface that finds.
Further, this communication equipment also comprises first dispensing unit 22, second dispensing unit 23, the 3rd dispensing unit 24 and memory cell 25, wherein,
Said first dispensing unit 22 is used to dispose the corresponding network identity of said interface place Rendezvous Point, and wherein, the network identity that each said Rendezvous Point is corresponding is different from the network identity of each said interface.
Said second dispensing unit 23 is used to dispose the ACL of each said interface and is handed down to each said interface.
Said the 3rd dispensing unit 24; Be used for according to first dispensing unit, 22 network configured sign configuration multicast forward table; Wherein, comprise the corresponding network identity of Internet Protocol IP address, source, multicast group purpose IP address and said interface place Rendezvous Point and the index corresponding relation of said outgoing interface in the said multicast forward table at least.
Said memory cell 25 is used to store multicast forward table and the outgoing interface tabulation that said the 3rd dispensing unit 24 disposes; Wherein, said outgoing interface list records said outgoing interface should with the corresponding relation of said outgoing interface.
Said network identity is VLAN ID or VPN sign.
Particularly, said access control unit 21 also can comprise: coupling subelement 211 and modification subelement 212, wherein,
Said coupling subelement 211 is used for said second dispensing unit 23 configuration and the VLAN sign that issues the interface of ACL are mated with the VLAN sign of said multicast message, if consistently confirm that then said interface is the actual incoming interface of said multicast message;
Revise subelement 212; Be used for when said coupling subelement 211 confirms that said interfaces are said actual incoming interface, the sign of the VLAN in the said multicast message being revised as the corresponding VLAN sign of said interface place Rendezvous Point according to first dispensing unit, 22 network configured sign;
Said retransmission unit 26; Be further used for confirming source address, multicast group destination address and the definite said outgoing interface index of amended VLAN sign in the said multicast message, in said outgoing interface tabulation, search said outgoing interface according to the said outgoing interface index of confirming according to the multicast forward table of said memory cell 25 storages.
Perhaps, said coupling subelement 211 is used for said second dispensing unit 23 configuration and the VPN sign that issues the interface of ACL are mated with the VPN sign of said multicast message, if consistently confirm that then said interface is the actual incoming interface of said multicast message;
Revise subelement 212; Be used for when said coupling subelement 211 confirms that said interfaces are said actual incoming interface, the sign of the VPN in the said multicast message being revised as the corresponding VPN sign of said interface place Rendezvous Point according to first dispensing unit, 22 network configured sign;
Said retransmission unit 26; Be further used for confirming source address, multicast group destination address and the definite said outgoing interface index of amended VPN sign in the said multicast message, in said outgoing interface tabulation, search said outgoing interface according to the said outgoing interface index of confirming according to the multicast forward table of said memory cell 25 storages.
So far, promptly obtained the communication equipment that the present invention adopted, its concrete workflow repeats no more please with reference to the respective description among the method embodiment shown in Figure 1.
In the existing mode; Interface on switch or the router (DF mouth or RPF mouth) is when receiving multicast message; According to the route for multicast forwarding table in the equipment (this table comprises source address S, multicast group destination address G, VLAN ID/VPN ID, incoming interface, outgoing interface index at least); The incoming interface that this multicast message of inquiry is corresponding earlier is as actual incoming interface; To inquire actual incoming interface again and compare with the interface that receives this multicast message, if unanimity then through rpf check, the outgoing interface of the outgoing interface index correspondence of searching according to this route for multicast forwarding table is transmitted; If inconsistent then rpf check is not passed through, this multicast message is abandoned.Because prior art is to utilize routing table to carry out rpf check; And the VLANID/VPN ID in the routing table is the item of must tabling look-up of device forwards multicast message; And the corresponding VLANID/VPN ID difference of each interface; So be necessary for all routing tables of configuration distributing of the corresponding VLAN of each interface, wasted the hardware resource of communication equipment.
The present invention has adopted a kind of diverse mode; Through being handed down to the ACL of each interface; The VLAN ID/VPN ID of VLAN ID/VPN ID and interface in the multicast message is mated; If both unanimities then through rpf check, are revised as the VLAN ID/VPN ID in the multicast message the corresponding VLAN ID/VPN ID of Rendezvous Point at interface place earlier, inquire interface again and transmit; If it is inconsistent then not through rpf check.Owing to interface adds multicast group, and therefore the only corresponding Rendezvous Point RP of a plurality of multicast group is revised as the corresponding VLAN ID/VPN ID of interface place RP with the VLAN ID/VPN ID in the multicast message of interface reception; Just make multicast message get into specific VLAN/VPN (promptly; The pairing VLAN/VPN of VLAN ID/VPN ID for the RP configuration) transmit, therefore, during the configuration routing table; Therefore the routing table that only needs foundation and RP number has reduced the hardware resource that takies.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. method for forwarding multicast message among the bidirectional protocol independent multicast PIM of a communication equipment, the interface receiving group message of this communication equipment is characterized in that this method comprises:
According to the access control list ACL that is handed down to said interface, when confirming that said interface is the actual incoming interface of said multicast message, the network identity of said multicast message is modified as the corresponding network identity of Rendezvous Point at said interface place;
Search corresponding outgoing interface according to the source address in the said multicast message, multicast group destination address and amended network identity, said multicast message is transmitted through the said outgoing interface that finds.
2. method according to claim 1 is characterized in that, before each interface of said communication equipment received the step of the multicast message that is sent by transmit leg, said method also comprised:
Dispose the corresponding network identity of said interface place Rendezvous Point; Wherein, the network identity that each said Rendezvous Point is corresponding is different from the network identity of each said interface;
The said ACL that will dispose after the said ACL corresponding with each said interface also will dispose is handed down to each corresponding said interface;
The configuration multicast forward table wherein, comprises the corresponding network identity of Internet Protocol IP address, source, multicast group purpose IP address and said interface place Rendezvous Point and the index corresponding relation of said outgoing interface at least in the said multicast forward table.
3. method according to claim 2 is characterized in that, said network identity is the virtual LAN VLAN sign; Wherein,
Said actual incoming interface with said interface and said multicast message matees; When definite said interface is the actual incoming interface of said multicast message; The step that the network identity of said multicast message is modified as the corresponding network identity of the Rendezvous Point at said interface place comprises: the VLAN sign and the VLAN sign in the said multicast message of said interface are mated, if consistently confirm that then said interface is the actual incoming interface of said multicast message; VLAN in said multicast message sign is revised as the corresponding VLAN sign of said interface place Rendezvous Point;
The said outgoing interface of searching correspondence according to the source address in the said multicast message, multicast group destination address, amended network identity: confirm source address, multicast group destination address and the definite said outgoing interface index of amended VLAN sign in the said multicast message according to said multicast forward table, according to the said outgoing interface of confirming of said outgoing interface index search.
4. method according to claim 2 is characterized in that, said network identity is the virtual private network VPN sign; Wherein,
Said actual incoming interface with said interface and said multicast message matees; When definite said interface is the actual incoming interface of said multicast message; The step that the network identity of said multicast message is modified as the corresponding network identity of the Rendezvous Point at said interface place comprises: the VPN sign and the VPN sign in the said multicast message of said interface are mated, if consistently confirm that then said interface is the actual incoming interface of said multicast message; VPN in said multicast message sign is revised as the corresponding VPN sign of said interface place Rendezvous Point;
Said step of searching corresponding outgoing interface according to the source address in the said multicast message, multicast group destination address, amended network identity comprises: confirm that according to said multicast forward table source address, multicast group destination address and amended VLAN sign in the said multicast message confirm said outgoing interface index, according to the said outgoing interface of confirming of said outgoing interface index search.
5. a communication equipment is used for transmitting bidirectional protocol independent multicast PIM multicast message, and each interface receiving group message of this communication equipment is characterized in that this communication equipment comprises:
Access control unit is used for according to being handed down to the access control list ACL of said interface, when confirming that said interface is the actual incoming interface of said multicast message, the network identity of said multicast message is modified as the corresponding network identity of Rendezvous Point at said interface place;
Retransmission unit, the source address, multicast group destination address and the amended network identity that are used for according to said multicast message are searched corresponding outgoing interface, and said multicast message is transmitted through the said outgoing interface that finds.
6. communication equipment according to claim 5 is characterized in that, said communication equipment also comprises:
First dispensing unit is used to dispose the corresponding network identity of said interface place Rendezvous Point, and wherein, the network identity that each said Rendezvous Point is corresponding is different from the network identity of each said interface;
Second dispensing unit is used to dispose the ACL of each said interface and is handed down to each said interface;
The 3rd dispensing unit; Be used for according to first dispensing unit network configured sign configuration multicast forward table; Wherein, comprise the corresponding network identity of Internet Protocol IP address, source, multicast group purpose IP address and said interface place Rendezvous Point and the index corresponding relation of said outgoing interface in the said multicast forward table at least.
7. communication equipment according to claim 6 is characterized in that, said communication equipment also comprises:
Memory cell is used to store multicast forward table and the outgoing interface tabulation that said the 3rd dispensing unit disposes; Wherein, said outgoing interface list records said outgoing interface should with the corresponding relation of said outgoing interface.
8. communication equipment according to claim 6 is characterized in that, said network identity is VLAN ID or VPN sign.
9. communication equipment according to claim 7 is characterized in that, said access control unit comprises:
The coupling subelement is used for the VLAN sign of said interface is mated with the VLAN sign of said multicast message, confirms then that as if consistent said interface is the actual incoming interface of said multicast message;
Revise subelement, be used for when said matching unit confirms that said interface is said actual incoming interface, the sign of the VLAN in the said multicast message being revised as the corresponding VLAN sign of said interface place Rendezvous Point; Wherein,
Said retransmission unit is confirmed source address, multicast group destination address and the definite said outgoing interface index of amended VLAN sign in the said multicast message according to said multicast forward table, in said outgoing interface tabulation, searches said outgoing interface according to the said outgoing interface index of confirming.
10. communication equipment according to claim 7 is characterized in that,
The coupling subelement also is used for the VPN sign of said interface is mated with the VPN sign of said multicast message, confirms then that as if consistent said interface is the actual incoming interface of said multicast message;
Revise subelement, also be used for when said matching unit confirms that said interface is said actual incoming interface, the sign of the VPN in the said multicast message being revised as the corresponding VPN sign of said interface place Rendezvous Point; Wherein,
Said retransmission unit is confirmed source address, multicast group destination address and the definite said outgoing interface index of amended VPN sign in the said multicast message according to said multicast forward table, in said outgoing interface tabulation, searches said outgoing interface according to the said outgoing interface index of confirming.
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| CN109831378A (en) * | 2019-01-31 | 2019-05-31 | 新华三技术有限公司 | A kind of message time-out response method and device |
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| CN113472667B (en) * | 2021-06-29 | 2022-06-21 | 新华三信息安全技术有限公司 | Message forwarding method, device, node equipment and storage medium |
| CN114513701A (en) * | 2022-01-06 | 2022-05-17 | 新华三技术有限公司 | Message processing method and device |
| CN114513701B (en) * | 2022-01-06 | 2023-11-24 | 新华三技术有限公司 | Message processing method and device |
| CN114448740A (en) * | 2022-01-14 | 2022-05-06 | 绿盟科技集团股份有限公司 | Multicast method, device, medium, product and equipment |
| CN114448740B (en) * | 2022-01-14 | 2023-11-07 | 绿盟科技集团股份有限公司 | Multicast method, device, medium, product and equipment |
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