10.
(Optional.) Configuring the SRv6 MTU
11.
(Optional.) Configuring the SRv6 DiffServ mode
Prerequisites for SRv6
Before you configure an SRv6 tunnel, perform the following tasks:
•
Determine the ingress node, transit nodes, and egress node of the SRv6 tunnel.
•
Plan the IPv6 address of each SR node.
Configuring an SRv6 SID
Restrictions and guidelines
Each locator must have a unique name.
Do not configure the same IPv6 address prefix and prefix length for different locators. In addition, the
IPv6 address prefixes of different locators cannot overlap.
You cannot disable SRv6 or delete a locator in SRv6 view if the locator has dynamic SRv6 SIDs that are being used.
Procedure
1. Enter system view. system-view
2. Enable SRv6 and enter SRv6 view. segment-routing ipv6
3. Configure a locator and enter SRv6 locator view.
locator locator-name [ ipv6-prefix ipv6-address prefix-length [ args args-length | static static-length ] * ]
4. (Optional.) Enable anycast for the locator. anycast enable
By default, anycast is disabled for a locator.
A locator is an anycast locator if the A-bit is set in the Flags field of the Locator TLV in routing protocol packets. An anycast locator is shared by a group of SRv6 nodes.
5. Configure an opcode. Perform one of the following tasks:
Configure an End SID. opcode { opcode | hex hex-opcode } end [ no-psp ]
Configure an End.X SID. opcode { opcode | hex hex-opcode } end-x interface interface-type
interface-number nexthop nexthop-ipv6-address [ no-psp ]
Configure an End.DT4 SID. opcode { opcode | hex hex-opcode } end-dt4 [ vpn-instance vpn-instance-name [ evpn | l3vpn-evpn ] ]
The specified VPN instance must exist. An End.DT4 SID cannot be configured in different
VPN instances.
Configure an End.DT6 SID. opcode { opcode | hex hex-opcode } end-dt6 [ vpn-instance vpn-instance-name [ evpn | l3vpn-evpn ] ]
128
The specified VPN instance must exist. An End.DT6 SID cannot be configured in different
VPN instances.
Configure an End.DT46 SID. opcode { opcode | hex hex-opcode } end-dt46 [ vpn-instance vpn-instance-name [ evpn | l3vpn-evpn ] ]
The specified VPN instance must exist. An End.DT46 SID cannot be configured in different
VPN instances.
Configure an End.DX4 SID. opcode { opcode | hex hex-opcode } end-dx4 interface interface-type
interface-number nexthop nexthop-ipv4-address [ vpn-instance
vpn-instance-name [ evpn ] ]
The specified VPN instance must exist. An End.DX4 SID cannot be configured with different output interfaces or next hops.
Configure an End.DX6 SID. opcode { opcode | hex hex-opcode } end-dx6 interface interface-type
interface-number nexthop nexthop-ipv6-address [ vpn-instance
vpn-instance-name [ evpn ] ]
The specified VPN instance must exist. An End.DX6 SID cannot be configured with different output interfaces or next hops.
Configure an End.DX2 SID. opcode { opcode | hex hex-opcode } end-dx2 xconnect-group group-name connection connection-name
The specified cross-connect group and cross-connect must exist. opcode { opcode | hex hex-opcode } end-dx2 vsi vsi-name interface
interface-type interface-number
The specified VSI must exist.
Configure an End.DX2L SID. opcode { opcode | hex hex-opcode } end-dx2l xconnect-group group-name connection connection-name
The specified cross-connect group and cross-connect must exist. opcode { opcode | hex hex-opcode } end-dx2l vsi vsi-name interface
interface-type interface-number
The specified VSI must exist.
Configure an End.DT2M SID. opcode { opcode | hex hex-opcode } end-dt2m vsi vsi-name
The specified VSI must exist. An End.DT2M SID cannot be configured in different VSIs.
Configure an End.DT2U SID. opcode { opcode | hex hex-opcode } end-dt2u vsi vsi-name
The specified VSI must exist. An End.DT2U SID cannot be configured in different VSIs.
Configure an End.DT2UL SID. opcode { opcode | hex hex-opcode } end-dt2ul vsi vsi-name
The specified VSI must exist. An End.DT2UL SID cannot be configured in different VSIs.
Configure an End.M SID. opcode { opcode | hex hex-opcode } end-m mirror-locator
ipv6-address prefix-length
Configure an End.OP SID. opcode { opcode | hex hex-opcode } end-op
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