WO2007065294A1

WO2007065294A1 - A method for processing rsvp gr when multiple neighbor nodes restart simultaneously

Info

Publication number: WO2007065294A1
Application number: PCT/CN2005/002106
Authority: WO
Inventors: Weilian Jiang; Jun Feng; Ying Cui; Yong Kong; Zhijun Xu
Original assignee: Zte Corporation
Priority date: 2005-12-07
Filing date: 2005-12-07
Publication date: 2007-06-14
Also published as: CN101283543B; CN101283543A

Abstract

A method for processing RSVP GR when multiple neighbor nodes restart simultaneously includes the steps of: step 1, the restarting node advertises the RSVP GR capability to its neighbors; step 2, triggering the RSVP GR to implement recovery process when multiple neighbor nodes restart simultaneously. The present invention introduces the multicast address technique or key data hot standby technique, which enable the restarting node can advertises its GR capability to its neighbors on it's own initiative, according to above, the invention further introduces the corresponding mechanism so that the RSVP GR is enabled to support multiple neighbor nodes to restart simultaneously and recover, which improves the reliability of the device.

Description

Multi-phase but the same S's approach to wood

This article involves RS Oacef Resa and the following RS GR wood. More particularly, it is related to the fact that A Shangduo is similar to RS R. Her method is applied to Afghanistan. Background wood

RS-TE control of S-switch router in Arab

R not only loses RSVP-TE control, but also deletes all S-specialities of the established P switching path tunnel. It means looking at Liu Te on the SP tunnel. Because the result of R-TE control is not only the SR but also the SR. Control failure in R VP-TE

The SR cannot receive the refresh message and the refresh message in the same period. However, it fails to receive the refresh message, but it also deletes all the RSVP-TE controls and features of the related P. The RS TE controls R and its S interrupts.

At present, the effect of reducing mercury controlled by RSVP-TE is solved by most routers R VP GR. The importance of S to RSVP-TE indicates the ability to control S features in RSVP-TE. Ran

The RSVPTE control of R loses RSVP-TE control, but R uses the S-Zhuite of the previously established SP tunnel. However, the detection of the RS-control of SR keeps the control and characteristics of the SP tunnel of all phases the same as the previous special traffic. Controlling the weight of the completed R contract but reestablishing the e-communication and resynchronizing the RS-TE control

To avoid interruptions.

Currently, it is based on the R R function on the RS R router of RFC3473 FC3209 daH e -ccamp-svp-esa -ex daft-e cca p-svp- ode-d-based- e.

Because in RF 3473 9 and RSVPGR, RF 3209 and eo Support the RS but with the same G capability announcements and faults, and in RFC3209, e-form the interface P address of the message's destination address and source address respectively. In daR-e-cca p-svp-ode-d-based-e, the destination address and source address of the GR-supported e message are TERo e D respectively. Nayu

It is her position that only after receiving the self-receiving RS GR e message can the AC message announce its own GR capabilities. The GR capability announcement in the accepted mode is acceptable. But for the same phase, the same GR capability also accomplishes the same R phase.

The existing wood could not be resolved. Liter

The purpose of this book is to provide a multi-phase but identical R VPGR method to accomplish multi-phase but identical R R.

For the purpose of this book, it provides a number of different methods of RS GR, which is unique in that it includes the following steps

Step 1. Announce R VPGR capability

Step 2. Multi-phase but the same RSVPGR her.

The method of multi-phase on the same is the same as that of R R. The special feature is that in step 2, the multi-phase is the same and the reconstructed GR e is from the RS R tunnel.

She completed the tunnel in many phases. The method of multi-phase on the same is the same as that of R VPGR. The feature is that in step 1, the address announces the RS R capability to the but includes the following steps

Those who support RSVP GR on their own can announce their GR capabilities in GR O messages on 1/2 of the periodic outbound address and destination address of all RSVP interfaces.

The multi-phase on the same is the same as that of RS R. Its special method is that in step 2 but the reconstruction of the GR e system includes the following steps However, if the GR O message of the destination address is received, it can be used first.

If it does not exist, the saved G capability parameter of the destination is stored. The GR capability parameter of the destination address

She has her own GR ability, AC news, but

of

The saved G capability parameter is stored, its own GR capability AC message arrives, but

After receiving the AC message, the GR e of the message can be the message information.

The multi-phase on the same is the same as that of RSVPGR. The special feature is that the reconstruction of the GR O system in step 2 includes the following steps

If the destination address of the self-received GR O message is also indicated by the address, then the same ability of the saved GR will stop the GR eo message of the destination address address after 1/2 and only the GR e retrograde GR e communication.

The multi-phase but the same method of RS R is unique in that, in step 1, each method notifies RS R of the capabilities, including the following steps

In the established GR O

Before each handover, each GR can, but GR e new GR e message announces its GR capabilities.

The above-mentioned multi-phase but the same method of RSVPGR is unique in that it includes the local router D, the router D, the destination interface, and the next hop address.

The multi-phase is the same as R PGR. In the step 2, each of the tunnels includes the multi-phase tunnel but the same city, the multi-phase tunnel but the multi-phase tunnel.

The above-mentioned multi-phase but the same method of RSVPGR is unique in that the multi-phase but the same situation in the tunnel includes the following steps

The multi-phase in the tunnel is the same and the re-establishment of the switching router SR of the GR e tunnel is the same. The switching router S in the same city in the same tunnel sends a Pah message with an icon. If the exchange of the receiving tunnel supporting the P h message is supported Router SR is also the same as the switch router R Pah message in the same tunnel

The switching router SR in the middle of the tunnel with the opposite tunnel receives the Pa message channel P with the image. Is there a channel that is assumed to be not found but is found in S? PSB The tunnel in the tunnel with the opposite tunnel RP h message of the same city Switching router SR of the same city in the downstream tunnel

, The interface is common, and the ER gets the Pah message upstream of the next hop address.

In the downstream tunnel, the PAT message received by the switching router SR of the same city exists in the channel PSB. Assuming that the channel that is not found but found in the S-specific channel PS contains the Ph message of the image. It is sent to the downstream tunnel.

The switching router SR of the tunnel received the reserved RSB that contains the parsed Pah message of the P-message through the P-message, and refreshes the Rev phase of the failed phase. However, the upstream router in the same tunnel in the upstream tunnel receives the Zhuzi tunnel Resv message reserves RB to phase channel PB. Refresh and update phase husband's special clear failure. However, Resv message upstream the same switching router SR in the tunnel The switching router SR in the upstream tunnel receives the Resv message from the same city in the downstream tunnel. R reserves the channel to the phase PSB. Refresh and update the special clearance of the husband. The switching router S in the Resv message tunnel

The switching router SR of the tunnel receives the Res message, refreshes the reserved RSB, clears the phase failure, and the tunnel is now complete.

The above-mentioned multi-phase is the same as the RS R method. The special feature is that the multi-phase includes the tunnel. In the same situation, she includes the following steps

The multi-phase switch router R that contains the same tunnel and re-establishes the GR e tunnel is directed to the switch router R in the middle of the opposite tunnel with the Pah message

Tunnel Switch router SR in the same city receives the Pahh message with an icon. Does the channel PSB exist? Suppose that it is not found, but it is found in the specific channel P B

SR P message carried by the same switching router in the tunnel

To the switching router SR in the downstream tunnel, where the interface is Tongte, the next hop address can be the upstream ER of the Pah message. In the downstream tunnel, the switching router SR of the same city receives the Pah message. Ph message of router SR icon

The switching router SR of the tunnel carries the Pa-like message channel P B reserves the RSB to update the special features to clear the failure and then the upstream Resv message goes upstream to the Resv message until the tunnel tunnel is complete.

The method of multi-identical RS R on the other hand is characterized by the fact that multi-phase contains tunnels. In the same situation, she includes the following steps

Multiphase contains tunnels that are identical and reconciled but re-established in the tunnel where the switching routers of the tunnel are facing each other Switch router S Pa message

Whether the Pah message channel PSB received by the switching router SR of the same city in the tunnel with the same tunnel is assumed to be not found, but the channel PSB of the natural phase found in the S special contains the Pah message like it is sent to the switching router SR of the downstream tunnel. Resv message of the tunnel

The tunnel's switch router SR Pah message is resolved. The switch's previous matching reserved RSB is updated. The special feature is cleared. The failed phase's Resv message is sent to the switch tunnel SR in the opposite tunnel.

Tunnel Different tunnel The same city's switching router SR receives the reservation of Resv message that has not been from the tunnel R updates the characteristics of Xiangfu

Clear the failure, and then go upstream to the switch router SR in the same city

P News

The switch router SR in the tunnel of the channel that received the same Pah message from the downstream tunnel does not include PS

The Pah message is sent to the switching router of the same city in the downstream tunnel. The SR waits for the Resv message of the downstream tunnel.

The switch router SR in the same city in the upstream tunnel receives the reserved RSB of the Resv message from the downstream tunnel in the same city, updates the special feature, clears the failure, and then forwards the switch router R Pah of the tunnel to the switch router SR of the tunnel. The PSB of the remaining phase of the P message of the same city in the opposite tunnel contains the P message to the switching router SR in the opposite tunnel waiting for the same Resv message in the tunnel

The switching router R of the tunnel receives the reservation of the Resv message in the tunnel of Zhu Zizhi, but the RSB updates the special features of Xiangfu. The clearance is invalid until the tunnel is complete.

Combine and this step. It is the local copper address to announce the RS R capability Step 2 is the local copper address to announce the RR capability 5

3 is Ben Mingduo, but she has the same city and the same RVP R in the tunnel.

4 is that she has many phases but contains tunnels and RVP R

0 5 is a multi-phase, but contains tunnels with RS R, her steps indicate hoarding. The best way

This book uses the following wood plan, the other method includes 2 steps

5 Step 1. Announce RSVP R capabilities

In this step, there are 2 can wood to be as follows

a) It supports R VPGRRecovey in itself. It can be the same in 1 / 2RecoveyTme and all periodic RSVP interfaces are the same.

Address The GR O message of the destination address announces its GR capabilities. b. In the established GR O, Roe, local Roe, sa ce, destination sa ce, interface, next hop address). However, before each handover, each GR O and GR e new GR e message announces its GR capabilities.

5 Step 2. Many phases but the same RSVP R

The multi-phase but the same and reconstruct the GR e is done by each SR on the RS R tunnel. A series of hers is completed in the multi-phase but the same tunnel. Among them are multi-phase but tunnel, multi-phase but tunnel 0, multi-phase but tunnel 3 god. Compared with the existing wood, the introduction of address wood or each makes it possible to announce its own GR capabilities. Here, it is proposed that the RS R can support multiple phases but the same her ability improves the reliability of each.

5 The following method is similar to RS R's.

As shown in Figure 1, the repeated address announces the RS GR capability steps. Other procedures are as follows

Those who still support RS GRRecove can advertise their GR capabilities to GR O messages on all R V interfaces at 0 1/2 RecoveyT e periodically. The main purpose of the GR O message P address address Pv4 224.0.0.2 Pv6 F 2n. nnn. n. n2 P address force local T o e D

The new value of 15 seconds can be used for all the interfaces under different interfaces.

Purpose sa ce 0.

Re a

A Cap icon Re a me force local configuration.

Res a Cap. tRecovey e force local configuration.

Capab-like R 1. Indicates that the city supports receiving RecoveyPah messages. 2 Cap North y Elephant T 1. Indicates that the city supports RecoveyPah news.

Cap North Elephant's S 0. It indicates that the city does not support the summary refresh message.

Capab Elephant's Reeseved 00

However, after receiving the GR O message of the destination address, you can first use the RO e of 25 to work for the Ro e and the local Ro e O

does it exist

If it does not exist, it will be saved. The announced GR capability parameter Purpose P address Address The announced GR capability parameter

Recovey's own GR ability AC news reached 30 but RecoveyTme There is a GR capability to save the advertised G capability itself, and the AC message arrives.

After receiving the AC message, the GR e of the message can be the message information. At this point, the reconciled GR e was reconstructed.

In addition, if the destination address of the received GR O message is also the same, the saved GR capability parameter is stored in the RecoveyT e

After 1/2 RecoveyT e must stop using the destination P address

GR e message and only GR e GR e o communication.

As shown in Figure 2, the weight of each tree is to announce the RSVPGR capability steps. The process is as follows

The GR O established before each has Ro e D, local Ro e, sa ce, destination sa ce, interface, and next hop address.

Before each handover, each GR O and GR e new GR e message informs the rebuilt GRO.

Figure 3 shows the steps of the same multi-phase tunnel in the same city and RS GR. Among them, the switching router of the SR tunnel, the switching router of the same city in the R3 tunnel, and the switching router of the SR4 tunnel

R2 and R3 all set up GR e together with SR, R2 and R4 in step 1.

This SR sends R2 a Pah message with Recovey's North Elephant. If it supports the reception of RecoveyPa messages, SR4 will also send S

RecoveyPah news.

When SR2 receives the P h message with the Recovey abe icon and the PS exists, it is assumed that it is not found but it is found in the special Phase PSB channel.

Since SR3 and SR3 have established GR e in GRRecovey, R2 P h message Recovey abe to S where the interface is generic to get the ER of the next hop address 5 Pah message upstream.

S is receiving the Recovey North e P message without self-weight S. R3 and the received PAT message PS exist. Suppose that the P of the R3 phase is found but not found in S. The Pah message containing S ggesed abe is sent to the downstream SR4.

SR4 receives the Pah refresh message of SR3 containing the S gges ed abe image. The ggese abe of the Pah message parses the SP. However, the matching RSB reserved phase is refreshed and the Resv message of the Sae phase is cleared to SR3.

S Received the Resv message from SR4 RS to the corresponding PS5 so far and have been refreshed R3 updated the husband to clear the sae course Resv message SR2

S Received the Resv message from R3 RS to the PS of the phase So far and both are refreshed R2 Update the characteristics of the husband to clear the sae Ran Resv message SR

The SR receives the Resv message, refreshes the sae of the RSB clear phase, and the tunnel T e1 is complete.

As shown in Figure 4, this multiphase contains tunnels

The steps of R GR are as follows

, R3 and SR4 are all in step 1 and R R25 and SR4 are established with GR e.

This R-joint sends SR2 a Ph message with the Recovey North e elephant.

When SR2 receives the Pa message with the Recovey abe image, does P exist? It is assumed that the PSB of the S phase is not found but found in the tea.

0 Since GR R2 R3 has established GR e she is in GR Recovey S can carry Recovey North e to R3 with Pa message. Among them, the interface is ER to get Ph message that the next hop address can be upstream.

After R3 received the P anti-h message, she established GR e because of the same as SR3 and SR4. She established GR e in GRRecovey. The SR3 sent R4 to the Ph message carrying the Recovey North e elephant instead of the Pah message carrying the Suggesed abe elephant.

R4 Recovey abe like the Pa message P RS update the special feature to clear the Sae Ran Resv message upstream. Along the upstream

Resv message until the SR tunnel T e is complete.

As shown in Figure 5, this multiphase contains tunnels

R R's steps are as follows

Both SR and R2 R3 establish GR e between the steps of her SR S R3 R4.

This can only be reported by SR4 to R3 RecoveyPa. Therefore, we require that all support receiving RecoveyPa messages.

If SR3 receives the RecoveyPa message from SR4, SR3 and the received PAT message PS are there. It is assumed that the PS of R3 phase that is not found but found in S is required. The P message has RRO. You can use it to get the ERO that contains the jump address However, the P message containing the ggesed abe image is sent to the downstream SR4 to wait for the SR4 Resv message. S ggese North e who passed the P h message parsed out the SP. Then the matched R B updates the characteristics of the husband, clears the sae, and sends the Resv message to the R3.

The SR3 receives the RS update message from the SR4, and the RS updates the corresponding special clear sae, and then the SR3 sends the S Reco eyP h message.

The same with her, S was receiving a RecoveyP h message from SR3 The PB of the SR2 residual phase contains the P of S gges ed abe. The downstream SR3 waits for the esv message of SR3.

R2 received the RS update message from R3, and the RS updated the special feature to clear the sae. Then SR2 sent the message to R RecoveyPa.

Same as above, her SR also has RSB to update her husband ’s special

Clear the sae so far the tunnel T e1 is complete.

Of course, there are many other people who are familiar with this field without the spirit of 10,000 books and can make various changes and changes.

and

Compared with the existing wood, the introduction of the address wood or each makes it possible to announce its own GR capabilities. Here, it is proposed that the RSVPGR can support multiple but the same ability to improve their reliability.

Claims

Requirement 1. The method of multi-phase but same R GR is characterized by the following steps:

Step 1. Announce RS R capabilities

Step 2. Multi-phase but the same R R she.

2. The method of requesting the multi-phase but the same R GR is the special method is that in step 2 the multi-phase but the same and not but reconstruct the GR e is based on the RS GR

Each of them in the tunnel is completed in many different tunnels.

3. The multi-phase but same R GR method of Requirement 2 is characterized by the fact that in step 1, the address informs the RSVP GR capability, but includes the following steps

Those who support RSVP GR on their own can announce their GR capabilities on the GR O message of 1/2 the same periodicity of all RSVP interfaces to the external address and destination address.

4. The multi-phase method of requirement 3 has the same R GR method. The special method is that the reconstruction of the GR e system in step 2 includes the following steps.

However, after receiving the GR O message of the destination address, you can first use the notified router to make sure that the router and the local router GR O exists

If it does not exist, the saved GR capability parameter will be saved.

Destination address Address Advertised GR capability parameter

She has her own GR ability, AC news, but

of

There are saved GR capability parameters that are advertised and its own GR capability AC message arrives.

AC message that can be received after receiving the message GR e.

5. The multi-phase requirements of 4 are the same as the RSVP GR method. The special feature is that in step 2 the GR O system is reconstructed.

Including the following steps

If the destination address of the received GR O message is also indicated by the address, the GR ability parameter of the same media that saves the announcement will be stopped at the same time as the GR eo message of the destination address address and the GR will be renewed. e GR e communication.

6. The multi-phase but the same method of RSVP GR of Requirement 2 is characterized in that in step 1, each method notifies RSVPGR capability to but includes the following steps

In the established GR O

In each handover, each GR can be informed of its GR capabilities by the GR new GR e message.

7. The multi-phase requirement of 6 is similar to the RS GR method, which is characterized by including the router but the local router

, Destination, interface, next hop address.

8. Requirement 2 7 Any requirement is the same

The method of R GR is unique in that in step 2, each tunnel

Her theory includes the same city in the multiphase tunnel, the multiphase tunnel but the multiphase tunnel.

9. The multi-phase requirement of 8 is the same as that of RSVP GR. The special method is that the multi-phase but the same in the middle of the tunnel. She includes the following steps

Multi-phase in the tunnel is the same and the same as the re-established GR e tunnel. The switching router S sends a P message with an image. If the reception of the P h message is supported, the switching router S of the tunnel also sends the SR Pa message to the same switching router in the opposite tunnel.

In the tunnel with different tunnels, the exchange router SR of the same city receives the P message with an image. Does the channel P exist? It is assumed that there is no natural channel PSB that I arrived but found in S. It is carried to the downstream tunnel. Among them, the interface is the ERO that Tongte gets the Pah message upstream of the next hop address.

The PAT message received by the switching router SR in the downstream tunnel. Does the channel PSB exist? It is assumed that the channel PSB that was not found but found in the S phase contains the Ph message to the downstream tunnel.

The switching router SR of the tunnel receives the P message containing the image, and the parsed and matched matching reservation R B of the P h message specifically refreshes the Resv message of the failed phase to the switching router R in the upstream tunnel to the opposite phase.

Tunnel Switch router S in the upstream tunnel that received the same Resv message received from the tunnel Reserve R B Channel to the phase P Refresh and update the special features of the router Clear the failure However Resv message Switch router SR in the same city in the upstream tunnel

The switching router SR in the upstream tunnel receives the Resv message from the downstream tunnel. The same channel is reserved. RSB to the corresponding channel. PSB New and updated features. Clear the failure. Resv message. Switch router SR in the tunnel.

The switching router SR of the tunnel receives the Resv message, refreshes the reserved RSB and clears the failure of the phase until the tunnel is complete.

10. The multi-phase requirement 8 is the same as the RR. The reason is that the multi-phase but the tunnel contains the same situation. She includes the following steps

Multi-phase contains the same tunnel and the re-establishment of the GR e tunnel of the switching router SR is the same phase of the opposite tunnel of the same city's switching router SR with Pah message

The switch router SR of the same city in the tunnel receives the Pah message with the icon. Does the channel PSB exist? Assuming that it is not found, but it is found in the S channel.

SR Pa message carried by the same switching router in the tunnel

To the same switching router SR in the downstream tunnel where the interface is tong get the next hop address can be the upstream ERO of the P message The switching router SR in the downstream tunnel is receiving the Pah message The switching router SR of the tunnel she is facing Elephant Pah Message

The tunnel's switching router R-like P h message channel PSB, reserved R B update the special features to clear the failure and then upstream Resv message along the upstream Resv message until the tunnel tunnel is complete.

11. The multi-phase requirement of R 8 is the same as R R's method. The special feature is that the multi-phase but contains the tunnel. In the same situation, she includes the following steps

Multi-phase contains tunnels and re-establishes GR e Tunnels from the tunnel's switching router SR to the opposite phase Oka City's switching router SR P message

Whether the Pah message channel PS received by the switching router SR of the same city in the tunnel with the same tunnel is assumed to be not found but found in the MS, but the corresponding channel PSB contains the Pah message like it to the downstream tunnel switching router SR waiting Resv message of the tunnel

The switch router of the tunnel R Pa message

Identify the RSB update phase that matches the reserved RSB Special clears the failed Resv message to the switching router R in the opposite tunnel

Tunnel The switching router in the opposite tunnel SR receives the reservation of the Resv message from the Zhu Zi tunnel RS updates the characteristics of Xiangfu

Ph message

The switching router SR in the upstream tunnel receives the tunnel from the downstream,

The channel PS of the same city's Pah message contains

Pah message to the downstream tunnel to the same city's switching router SR waiting for the same Resv message in the tunnel

The switching router SR in the upstream tunnel receives the same Resv message reservation from the downstream tunnel.

Clear the failure and then send the SR Pa message to the switching router of the tunnel

The switch router SR of the tunnel receives the Pa message in the opposite tunnel. The channel P contains the image Pah message. The switch router SR in the middle of the opposite tunnel waits for the Rev message in the middle of the tunnel.

The switching router R of the tunnel receives the reservation of the same Res message in the tunnel from which the RSB has been updated. The RSB updates the special features of the tunnel. The clearance is invalid until the tunnel is complete.