Figure 46 Diagram for SR microloop avoidance after a failure recovery
IPv6 SA=a, IPv6 DA=b
SRH[(c, b) SL=1]
IP data a
Device A b
Device B
IPv6 SA=a, IPv6 DA=c
SRH[(c, b) SL=0]
IP data c
Device C
Backup path after a failure
Path after the failure is removed
Failed link
Device F Device E Device D
Protocols and standards
• draft-previdi-6man-segment-routing-header
• draft-ietf-6man-segment-routing-header
• draft-filsfils-spring-segment-routing
• draft-filsfils-spring-srv6-network-programming
SRv6 tasks at a glance
To configure SRv6, perform the following tasks:
1.
Configuring an SRv6 SID
2.
Configuring G-SIDs
This task is required if SRv6 compression is enabled.
3.
(Optional.) Configuring dynamic End.X SID deletion delay
4.
Specifying a source address for the outer IPv6 header of SRv6-encapsulated packets
5.
Using IGP to advertise SRv6 SIDs
6. Configuring BGP for SRv6
Enabling BGP to advertise routes for a locator
Configuring BGP-EPE
7.
Configuring SRv6 tunneling
Perform the following tasks on the source node of an SRv6 tunnel: a.
Configuring an SID list
b.
Specifying an SID list for an SRv6 tunnel
c.
(Optional.) Configuring a service class for an SRv6 tunnel
d.
(Optional.) Enabling BFD echo-mode detection for an SRv6 tunnel
8.
(Optional.) Configuring traffic forwarding
9.
(Optional.) Configuring TI-LFA FRR
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