segment-routing ipv6 egress-engineering locator

Function

The segment-routing ipv6 egress-engineering locator command enables a device to allocate a locator to all its BGP EPE peers.

The undo segment-routing ipv6 egress-engineering locator command disables a device from allocating a locator to any of its BGP EPE peers.

By default, a device is not enabled to allocate a locator to any of its BGP EPE peers.

Format

segment-routing ipv6 egress-engineering locator locator-name

undo segment-routing ipv6 egress-engineering locator [ locator-name ]

Parameters

Parameter	Description	Value
locator-name	Specifies the name of a SID node route locator, which was configured through the locator command.	The value is a string of 1 to 31 case-sensitive characters. When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

locator-name

Specifies the name of a SID node route locator, which was configured through the locator command.

The value is a string of 1 to 31 case-sensitive characters. When double quotation marks are used around the string, spaces are allowed in the string.

Views

BGP view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

BGP is a dynamic routing protocol used between ASs. BGP EPE is an extension of BGP for SR and is used to implement source routing between ASs.

BGP EPE can allocate BGP peer SIDs to inter-AS paths, and the peer SIDs can then be advertised to a network controller through extended BGP LS functions. The controller orchestrates IGP SIDs and BGP peer SIDs to implement inter-AS forwarding over the optimal path.

After the segment-routing ipv6 egress-engineering locator command is run on a device, the device can allocate peer node segment (peer-node SID) and peer adjacency segment (peer-Adj SID) values to all its peers enabled with BGP EPE.

A peer-node SID identifies a peer node.
A Peer-Adj SID identifies an adjacency to a peer.

Precautions

If a locator is specified in the peer egress-engineering srv6 locator command, BGP EPE allocates SIDs from this locator to peers. If no locator is specified in the peer egress-engineering srv6 locator command, BGP EPE uses the locator specified in the segment-routing ipv6 egress-engineering locator command for allocation.

Example

# Enable a device to allocate a locator to all its BGP EPE peers.

<HUAWEI> system-view
[~HUAWEI] segment-routing ipv6
[*HUAWEI-segment-routing-ipv6] locator test ipv6-prefix 30::1 64 static 32
[*HUAWEI-segment-routing-ipv6-locator] quit
[*HUAWEI-segment-routing-ipv6] quit
[*HUAWEI] bgp 100
[*HUAWEI-bgp] segment-routing ipv6 egress-engineering locator test