draftietfmplsrsvpegressprotection01 Huaimo Chen Zhenbin Li Ning So Autumn Liu Fengman Xu Mehmet Toy Lu Huang Lei Liu Changes to the previous version Added detailsexplanations on ID: 317939
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Slide1
Extensions to RSVP-TE for LSP Egress Local Protection
draft-ietf-mpls-rsvp-egress-protection-01
Huaimo
Chen,
Zhenbin
Li
Ning So,
Autumn Liu,
Fengman Xu, Mehmet Toy
Lu Huang, Lei LiuSlide2
Changes to the previous version
Added details/explanations on
Computing a backup path for protecting primary egress
Keeping primary LSP up after primary egress failsSlide3
Computing Backup Path
Upstream node of primary egress as PLR:
Computes a backup path for backup LSP to protect primary egress
obtains backup egress
excludes primary egress to be protected, thus
finds a path to backup egress without primary egress
CE4
CE1
P3
P2
P4
P7
PE7
P8
PE1
PE8
P5
P1
Primary Egress
Backup Egress
Upstream node as PLR
Primary LSP
Backup LSPSlide4
Keeping Primary LSP Up
Upstream node of primary egress as PLR:
K
eeps primary LSP up after primary egress fails
continues to send RESV message to its upstream node after primary egress fails.
CE4
CE1
P3
P2
P4
P7
PE7
P8
PE1
PE8
P5
P1
Primary Egress
Backup Egress
Upstream node as PLR
Primary LSP
Backup LSP
RESVSlide5
Next Step
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