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Automatic route advertisement.
This functionality distributes the SRv6 tunnel to the IGP and makes the SRv6 tunnel participate in IGP route calculation.
Restrictions and guidelines for directing traffic to an SRv6 tunnel
The IPv6 router ID must be unique in the IPv6 network.
To avoid routing loops in a ring topology when a link on the SRv6 tunnel is down, set the SIDs in the
SID list of the SRv6 tunnel to have 128-bit prefixes. IGP does not set the output interface of a host route to the SRv6 tunnel interface.
Prerequisites for directing traffic to an SRv6 tunnel
Before you configure the IPv6 router ID for IS-IS, make sure the cost style of IS-IS is wide , compatible , or wide-compatible . For more information about the cost styles of IS-IS, see
Layer 3—IP Routing Configuration Guide .
Before you configure automatic route advertisement, you must enable IPv6 capability for the IGP protocol on the SRv6 tunnel interface.
Configuring the IPv6 router ID and enabling IPv6 TE
1. Enter system view. system-view
2. Enter IS-IS view. isis [ process-id ] [ vpn-instance vpn-instance-name ]
3. Enter IS-IS IPv6 address family view. address-family ipv6 [ unicast ]
4. Configure the IPv6 router ID for IS-IS and enable IPv6 TE.
router-id ipv6-address
By default, no IPv6 router ID is configured for IS-IS and IPv6 TE is disabled.
Configuring IGP shortcut
1. Enter system view. system-view
2. Enter SRv6 tunnel interface view. interface tunnel tunnel-number mode sr ipv6
3. Enable IGP shortcut. srv6 igp shortcut [ isis | ospf ]
By default, IGP shortcut is disabled.
Only IS-IS supports IGP shortcut in the current software version.
4. Assign a metric to the SRv6 tunnel. srv6 igp metric { absolute value | relative value }
By default, the metric of an SRv6 tunnel equals its IGP metric.
Configuring TI-LFA FRR
TI-LFA FRR tasks at a glance
To configure TI-LFA FRR, perform the following tasks:
1.
Enabling TI-LFA FRR
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