The mpls rsvp-te srefresh compatible command enables summary refresh (Srefresh) forward compatibility.
The undo mpls rsvp-te srefresh compatible command disables Srefresh forward compatibility.
By default, Srefresh forward compatibility is disabled.
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Usage Scenario
When the primary and backup CR-LSPs share the same link, the node on both ends of the link may run different versions. If the upstream nodes run a version earlier than V8 and the downstream node runs V8, Srefresh incompatibility occurs. To address this problem, run the mpls rsvp-te srefresh compatible command on the interface that connects the downstream device to the upstream node to enable Srefresh compatibility.
Prerequisites
RSVP-TE has been enabled using the mpls rsvp-te command on the interface.
Precautions
This command can only be run on a downstream node running V8 when its upstream node runs a version earlier than V8, which ensures that Srefresh can be properly negotiated between the two nodes. It cannot be run in the other scenarios, for example, when a Huawei device connects to a non-Huawei device.
<HUAWEI> system-view [~HUAWEI] mpls [*HUAWEI-mpls] mpls te [*HUAWEI-mpls] mpls rsvp-te [*HUAWEI-mpls] quit [*HUAWEI] interface GigabitEthernet 0/1/0 [*HUAWEI-GigabitEthernet0/1/0] mpls [*HUAWEI-GigabitEthernet0/1/0] mpls te [*HUAWEI-GigabitEthernet0/1/0] mpls rsvp-te [*HUAWEI-GigabitEthernet0/1/0] mpls rsvp-te srefresh compatible