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如图1所示，在IPv6网络中，数据中心内部客户希望在接入层实现设备独立，做到控制面隔离以及设备故障隔离，且版本升级不会相互影响的前提下能够双活转发处理。通过配置M-LAG Lite，能够确保多台设备间控制面的解耦，且设备间无须配置心跳链路来同步协议报文即可达到双活转发的目的。
本示例仅包含IPv6 M-LAG Lite的配置，如需配置IPv4&IPv6双协议栈下的M-LAG Lite，请将本示例与配置M-LAG Lite示例结合配置。
采用如下的思路配置：
为了保证Eth-Trunk协商成功，需要保证Leaf1和Leaf2具有相同的LACP系统优先级、Eth-Trunk接口具有相同的接口ID和相同的LACP系统ID。同时，还要求两台Leaf上的Eth-Trunk成员口在LACP协议中的编号不同，以防止LACP协商不成功。
如果通过支持STP的设备使用跨设备链路聚合（M-LAG Lite）方式接入Leaf交换机，需要在该设备上去使能STP，同时在leaf的下行口上配置stp edged-port enable，否则在该设备上会出现STP震荡。
配置Leaf层交换机Monitor Link关联上行接口和下行接口，避免因上行链路故障导致用户侧流量无法转发而被丢弃。
# 配置Leaf1
<HUAWEI> system-view [~HUAWEI] sysname Leaf1 //修改设备名称为Leaf1 [*HUAWEI] commit [~Leaf1] vlan batch 100 [*Leaf1] interface eth-trunk 10 [*Leaf1-Eth-Trunk10] trunkport 100ge 1/0/3 [*Leaf1-Eth-Trunk10] mode lacp-static [*Leaf1-Eth-Trunk10] lacp system-id 00e0-fc00-0000 //在Leaf1与Leaf2上配置相同的LACP系统ID [*Leaf1-Eth-Trunk10] port link-type trunk [*Leaf1-Eth-Trunk10] port trunk pvid vlan 100 [*Leaf1-Eth-Trunk10] port trunk allow-pass vlan 100 [*Leaf1-Eth-Trunk10] quit [*Leaf1] interface eth-trunk 20 [*Leaf1-Eth-Trunk20] trunkport 100ge 1/0/4 [*Leaf1-Eth-Trunk20] mode lacp-static [*Leaf1-Eth-Trunk20] lacp system-id 00e0-fc00-0001 //在Leaf1与Leaf2上配置相同的LACP系统ID [*Leaf1-Eth-Trunk20] port link-type trunk [*Leaf1-Eth-Trunk20] port trunk pvid vlan 100 [*Leaf1-Eth-Trunk20] port trunk allow-pass vlan 100 [*Leaf1-Eth-Trunk20] quit [*Leaf1] lacp priority 100 //在Leaf1与Leaf2上配置相同的LACP系统优先级 [*Leaf1] commit
# 配置Leaf2
<HUAWEI> system-view [~HUAWEI] sysname Leaf2 //修改设备名称为Leaf2 [*HUAWEI] commit [~Leaf2] vlan batch 100 [*Leaf2] interface eth-trunk 10 [*Leaf2-Eth-Trunk10] trunkport 100ge 1/0/3 [*Leaf2-Eth-Trunk10] mode lacp-static [*Leaf2-Eth-Trunk10] lacp system-id 00e0-fc00-0000 //在Leaf1与Leaf2上配置相同的LACP系统ID [*Leaf2-Eth-Trunk10] lacp port-id-extension enable //在leaf2上配置Eth-Trunk成员接口编号扩展，使成员接口编号增加32768，以防止出现两台Leaf上的Eth-Trunk成员口在LACP协议中编号相同的情况 [*Leaf2-Eth-Trunk10] port link-type trunk [*Leaf2-Eth-Trunk10] port trunk pvid vlan 100 [*Leaf2-Eth-Trunk10] port trunk allow-pass vlan 100 [*Leaf2-Eth-Trunk10] quit [*Leaf2] interface eth-trunk 20 [*Leaf2-Eth-Trunk20] trunkport 100ge 1/0/4 [*Leaf2-Eth-Trunk20] mode lacp-static [*Leaf2-Eth-Trunk20] lacp system-id 00e0-fc00-0001 //在Leaf1与Leaf2上配置相同的LACP系统ID [*Leaf2-Eth-Trunk20] lacp port-id-extension enable //在leaf2上配置Eth-Trunk成员接口编号扩展，使成员接口编号增加32768，以防止出现两台Leaf上的Eth-Trunk成员口在LACP协议中编号相同的情况 [*Leaf2-Eth-Trunk20] port link-type trunk [*Leaf2-Eth-Trunk20] port trunk pvid vlan 100 [*Leaf2-Eth-Trunk20] port trunk allow-pass vlan 100 [*Leaf2-Eth-Trunk20] quit [*Leaf2] lacp priority 100 //在Leaf1与Leaf2上配置相同的LACP系统优先级 [*Leaf2] commit
# 配置Spine1
<HUAWEI> system-view [~HUAWEI] sysname Spine1 //修改设备名称为Spine1 [*HUAWEI] commit [~Spine1] interface 100ge 1/0/1 [~Spine1-100GE1/0/1] undo portswitch [*Spine1-100GE1/0/1] port-isolate l3 enable [*Spine1-100GE1/0/1] ipv6 enable [*Spine1-100GE1/0/1] ipv6 address 2001:db8:1::1 64 [*Spine1-100GE1/0/1] quit [*Spine1] interface 100ge 1/0/2 [*Spine1-100GE1/0/2] undo portswitch [*Spine1-100GE1/0/2] port-isolate l3 enable [*Spine1-100GE1/0/2] ipv6 enable [*Spine1-100GE1/0/2] ipv6 address 2001:db8:3::1 64 [*Spine1-100GE1/0/2] quit [*Spine1] commit
# 配置Spine2
<HUAWEI> system-view [~HUAWEI] sysname Spine2 //修改设备名称为Spine2 [*HUAWEI] commit [~Spine2] interface 100ge 1/0/1 [~Spine2-100GE1/0/1] undo portswitch [*Spine2-100GE1/0/1] port-isolate l3 enable [*Spine2-100GE1/0/1] ipv6 enable [*Spine2-100GE1/0/1] ipv6 address 2001:db8:4::1 64 [*Spine2-100GE1/0/1] quit [*Spine2] interface 100ge 1/0/2 [*Spine2-100GE1/0/2] undo portswitch [*Spine2-100GE1/0/2] port-isolate l3 enable [*Spine2-100GE1/0/2] ipv6 enable [*Spine2-100GE1/0/2] ipv6 address 2001:db8:2::1 64 [*Spine2-100GE1/0/2] quit [*Spine2] commit
[~Leaf1] interface 100ge 1/0/1 [~Leaf1-100GE1/0/1] undo portswitch [*Leaf1-100GE1/0/1] port-isolate l3 enable [*Leaf1-100GE1/0/1] ipv6 enable [*Leaf1-100GE1/0/1] ipv6 address 2001:db8:1::2 64 [*Leaf1-100GE1/0/1] quit [*Leaf1] interface 100ge 1/0/2 [*Leaf1-100GE1/0/2] undo portswitch [*Leaf1-100GE1/0/2] port-isolate l3 enable [*Leaf1-100GE1/0/2] ipv6 enable [*Leaf1-100GE1/0/2] ipv6 address 2001:db8:2::2 64 [*Leaf1-100GE1/0/2] quit [*Leaf1] commit
[~Leaf2] interface 100ge 1/0/1 [~Leaf2-100GE1/0/1] undo portswitch [*Leaf2-100GE1/0/1] port-isolate l3 enable [*Leaf2-100GE1/0/1] ipv6 enable [*Leaf2-100GE1/0/1] ipv6 address 2001:db8:4::2 64 [*Leaf2-100GE1/0/1] quit [*Leaf2] interface 100ge 1/0/2 [*Leaf2-100GE1/0/2] undo portswitch [*Leaf2-100GE1/0/2] port-isolate l3 enable [*Leaf2-100GE1/0/2] ipv6 enable [*Leaf2-100GE1/0/2] ipv6 address 2001:db8:3::2 64 [*Leaf2-100GE1/0/2] quit [*Leaf2] commit
[~Leaf1] interface vlanif 100 [*Leaf1-Vlanif100] ipv6 enable [*Leaf1-Vlanif100] ipv6 address 2001:db8:100::1 64 [*Leaf1-Vlanif100] ipv6 address FE80::300:3EFF:FE11:985 link-local [*Leaf1-Vlanif100] mac-address 0000-5e00-0101 [*Leaf1-Vlanif100] ipv6 nd proxy anyway enable //使能ND任意代答功能。Leaf捕获服务器发送的NS请求报文后，会使用自己的三层网关接口的接口MAC进行NA应答，这样服务器的上行流量到达Leaf层后，都会进行三层转发 [*Leaf1-Vlanif100] ipv6 nd delete trigger link-down enable //使能链路Down时ND表项快速删除功能，当成员端口Down时，该端口下的ND表项就会立即删除 [*Leaf1-Vlanif100] ipv6 nd direct-route enable //使能接口发布NDP Vlink直连路由功能，然后通过路由协议引入直连路由，可以将ND转换的主机路由发布给路由邻居，避免在链路故障时形成路由黑洞 [*Leaf1-Vlanif100] ipv6 nd direct-route preference 1 //配置NDP Vlink直连路由的优先级为1 [*Leaf1-Vlanif100] ipv6 nd direct-route delay 120 //(可选)为了避免由于IPv6 NDP Vlink直连路由建立慢，但是路由引流快导致的流量丢失问题，可以配置延迟发布IPv6 NDP Vlink直连路由的时间 [*Leaf1-Vlanif100] quit [*Leaf1] commit
[~Leaf2] interface vlanif 100 [*Leaf2-Vlanif100] ipv6 enable [*Leaf2-Vlanif100] ipv6 address 2001:db8:100::1 64 [*Leaf2-Vlanif100] ipv6 address FE80::300:3EFF:FE11:985 link-local [*Leaf2-Vlanif100] mac-address 0000-5e00-0101 [*Leaf2-Vlanif100] ipv6 nd proxy anyway enable //使能ND任意代答功能。Leaf捕获服务器发送的NS请求报文后，会使用自己的三层网关接口的接口MAC进行NA应答，这样服务器的上行流量到达Leaf层后，都会进行三层转发 [*Leaf2-Vlanif100] ipv6 nd delete trigger link-down enable //使能链路Down时ND表项快速删除功能，当成员端口Down时，该端口下的ND表项就会立即删除 [*Leaf2-Vlanif100] ipv6 nd direct-route enable //使能接口发布NDP Vlink直连路由功能，然后通过路由协议引入直连路由，可以将ND转换的主机路由发布给路由邻居，避免在链路故障时形成路由黑洞 [*Leaf2-Vlanif100] ipv6 nd direct-route preference 1 //配置NDP Vlink直连路由的优先级为1 [*Leaf2-Vlanif100] ipv6 nd direct-route delay 120 //(可选)为了避免由于IPv6 NDP Vlink直连路由建立慢，但是路由引流快导致的流量丢失问题，可以配置延迟发布IPv6 NDP Vlink直连路由的时间 [*Leaf2-Vlanif100] quit [*Leaf2] commit
[~Spine1] bgp 65009 [*Spine1-bgp] router-id 172.16.1.1 [*Spine1-bgp] group leaf external [*Spine1-bgp] peer 2001:db8:1::2 as-number 65020 [*Spine1-bgp] peer 2001:db8:1::2 group leaf [*Spine1-bgp] peer 2001:db8:3::2 as-number 65021 [*Spine1-bgp] peer 2001:db8:3::2 group leaf [*Spine1-bgp] timer keepalive 10 hold 30 [*Spine1-bgp] ipv6-family unicast [*Spine1-bgp-af-ipv6] load-balancing as-path-relax //路由在形成负载分担时不比较相同长度的AS-Path属性，确保不同Leaf发给Spine的路由可以形成负载分担 [*Spine1-bgp-af-ipv6] preference 20 200 10 [*Spine1-bgp-af-ipv6] peer 2001:db8:1::2 enable [*Spine1-bgp-af-ipv6] peer 2001:db8:3::2 enable [*Spine1-bgp-af-ipv6] network 2001:db8:1:: 64 [*Spine1-bgp-af-ipv6] network 2001:db8:3:: 64 [*Spine1-bgp-af-ipv6] maximum load-balancing 32 [*Spine1-bgp-af-ipv6] quit [*Spine1-bgp] quit [*Spine1] commit
[~Spine2] bgp 65009 [*Spine2-bgp] router-id 172.16.2.1 [*Spine2-bgp] group leaf external [*Spine2-bgp] peer 2001:db8:2::2 as-number 65020 [*Spine2-bgp] peer 2001:db8:2::2 group leaf [*Spine2-bgp] peer 2001:db8:4::2 as-number 65021 [*Spine2-bgp] peer 2001:db8:4::2 group leaf [*Spine2-bgp] timer keepalive 10 hold 30 [*Spine2-bgp] ipv6-family unicast [*Spine2-bgp-af-ipv6] load-balancing as-path-relax //路由在形成负载分担时不比较相同长度的AS-Path属性，确保不同Leaf发给Spine的路由可以形成负载分担 [*Spine2-bgp-af-ipv6] preference 20 200 10 [*Spine2-bgp-af-ipv6] peer 2001:db8:2::2 enable [*Spine2-bgp-af-ipv6] peer 2001:db8:4::2 enable [*Spine2-bgp-af-ipv6] network 2001:db8:2:: 64 [*Spine2-bgp-af-ipv6] network 2001:db8:4:: 64 [*Spine2-bgp-af-ipv6] maximum load-balancing 32 [*Spine2-bgp-af-ipv6] quit [*Spine2-bgp] quit [*Spine2] commit
[~Leaf1] bgp 65020 [*Leaf1-bgp] router-id 172.16.3.1 [*Leaf1-bgp] group spine external [*Leaf1-bgp] peer spine as-number 65009 [*Leaf1-bgp] peer 2001:db8:1::1 as-number 65009 [*Leaf1-bgp] peer 2001:db8:1::1 group spine [*Leaf1-bgp] peer 2001:db8:2::1 as-number 65009 [*Leaf1-bgp] peer 2001:db8:2::1 group spine [*Leaf1-bgp] timer keepalive 10 hold 30 [*Leaf1-bgp] ipv6-family unicast [*Leaf1-bgp-af-ipv6] preference 20 200 10 [*Leaf1-bgp-af-ipv6] peer 2001:db8:1::1 enable [*Leaf1-bgp-af-ipv6] peer 2001:db8:2::1 enable [*Leaf1-bgp-af-ipv6] network 2001:db8:1:: 64 [*Leaf1-bgp-af-ipv6] network 2001:db8:2:: 64 [*Leaf1-bgp-af-ipv6] network 2001:db8:100:: 64 [*Leaf1-bgp-af-ipv6] import-route direct //引入直连路由学习到的路由信息，可以根据实际组网情况配置路由策略过滤掉非必要的路由 [*Leaf1-bgp-af-ipv6] maximum load-balancing 32 [*Leaf1-bgp-af-ipv6] quit [*Leaf1-bgp] quit [*Leaf1] commit
[~Leaf2] bgp 65021 [*Leaf2-bgp] router-id 172.16.4.1 [*Leaf2-bgp] group spine external [*Leaf2-bgp] peer spine as-number 65009 [*Leaf2-bgp] peer 2001:db8:3::1 as-number 65009 [*Leaf2-bgp] peer 2001:db8:3::1 group spine [*Leaf2-bgp] peer 2001:db8:4::1 as-number 65009 [*Leaf2-bgp] peer 2001:db8:4::1 group spine [*Leaf2-bgp] timer keepalive 10 hold 30 [*Leaf2-bgp] ipv6-family unicast [*Leaf2-bgp-af-ipv6] preference 20 200 10 [*Leaf2-bgp-af-ipv6] peer 2001:db8:3::1 enable [*Leaf2-bgp-af-ipv6] peer 2001:db8:4::1 enable [*Leaf2-bgp-af-ipv6] network 2001:db8:3:: 64 [*Leaf2-bgp-af-ipv6] network 2001:db8:4:: 64 [*Leaf2-bgp-af-ipv6] network 2001:db8:100:: 64 [*Leaf2-bgp-af-ipv6] import-route direct //引入直连路由学习到的路由信息，可以根据实际组网情况配置路由策略过滤掉非必要的路由 [*Leaf2-bgp-af-ipv6] maximum load-balancing 32 [*Leaf2-bgp-af-ipv6] quit [*Leaf2-bgp] quit [*Leaf2] commit
本文以Leaf1和Leaf2配置不同AS作为举例说明。对于Leaf1和Leaf2配置相同AS场景，需要增加配置命令peer allow-as-loop，以确保不同Leaf的路由经过Spine后，能将路由发布给对方。
[~Leaf1] monitor-link group 1 [*Leaf1-mtlk-group1] port 100ge 1/0/1 uplink [*Leaf1-mtlk-group1] port 100ge 1/0/2 uplink [*Leaf1-mtlk-group1] port eth-trunk 10 downlink 1 [*Leaf1-mtlk-group1] port eth-trunk 20 downlink 2 [*Leaf1-mtlk-group1] timer recover-time 60 [*Leaf1-mtlk-group1] quit [*Leaf1] commit
[~Leaf2] monitor-link group 1 [*Leaf2-mtlk-group1] port 100ge 1/0/1 uplink [*Leaf2-mtlk-group1] port 100ge 1/0/2 uplink [*Leaf2-mtlk-group1] port eth-trunk 10 downlink 1 [*Leaf2-mtlk-group1] port eth-trunk 20 downlink 2 [*Leaf2-mtlk-group1] timer recover-time 60 [*Leaf2-mtlk-group1] quit [*Leaf2] commit
查看设备的Eth-Trunk信息，查看M-LAG Lite已与服务器协商成功，端口状态为Up。
[~Leaf1] display eth-trunk 10 Eth-Trunk10's state information is: Local: LAG ID: 10 Working Mode: Static Preempt Delay: Disabled Hash Arithmetic: profile default System Priority: 100 System ID: 00e0-fc00-0000 Least Active-linknumber: 1 Max Active-linknumber: 32 Operating Status: up Number Of Up Ports In Trunk: 1 Timeout Period: Slow PortKeyMode: Auto -------------------------------------------------------------------------------- ActorPortName Status PortType PortPri PortNo PortKey PortState Weight 100GE1/0/3 Selected 100GE 32768 1 2625 10111100 1 Partner: -------------------------------------------------------------------------------- ActorPortName SysPri SystemID PortPri PortNo PortKey PortState 100GE1/0/3 32768 00e0-fc12-2401 32768 1 2625 10111100
[~Leaf1] display eth-trunk 20 Eth-Trunk20's state information is: Local: LAG ID: 20 Working Mode: Static Preempt Delay: Disabled Hash Arithmetic: profile default System Priority: 100 System ID: 00e0-fc00-0001 Least Active-linknumber: 1 Max Active-linknumber: 32 Operating Status: up Number Of Up Ports In Trunk: 1 Timeout Period: Slow PortKeyMode: Auto -------------------------------------------------------------------------------- ActorPortName Status PortType PortPri PortNo PortKey PortState Weight 100GE1/0/4 Selected 100GE 32768 2 5185 10111100 1 Partner: -------------------------------------------------------------------------------- ActorPortName SysPri SystemID PortPri PortNo PortKey PortState 100GE1/0/4 32768 00e0-fc39-8b01 32768 1 5185 10111100
查看Server1和Server2是否可以互通。
# 配置Server1和Server2的IPv6地址分别为2001:db8:100::2/64和2001:db8:100::3/64。
# 配置完成后，Server1和Server2之间可以互相Ping通。
# sysname Spine1 # interface 100GE1/0/1 undo portswitch ipv6 enable ipv6 address 2001:DB8:1::1/64 port-isolate l3 enable # interface 100GE1/0/2 undo portswitch ipv6 enable ipv6 address 2001:DB8:3::1/64 port-isolate l3 enable # bgp 65009 router-id 172.16.1.1 timer keepalive 10 hold 30 group leaf external peer 2001:DB8:1::2 as-number 65020 peer 2001:DB8:1::2 group leaf peer 2001:DB8:3::2 as-number 65021 peer 2001:DB8:3::2 group leaf # ipv6-family unicast preference 20 200 10 network 2001:DB8:1:: 64 network 2001:DB8:3:: 64 maximum load-balancing 32 peer 2001:DB8:1::2 enable peer 2001:DB8:3::2 enable load-balancing as-path-relax # return
# sysname Spine2 # interface 100GE1/0/1 undo portswitch ipv6 enable ipv6 address 2001:DB8:4::1/64 port-isolate l3 enable # interface 100GE1/0/2 undo portswitch ipv6 enable ipv6 address 2001:DB8:2::1/64 port-isolate l3 enable # bgp 65009 router-id 172.16.2.1 timer keepalive 10 hold 30 group leaf external peer 2001:DB8:2::2 as-number 65020 peer 2001:DB8:2::2 group leaf peer 2001:DB8:4::2 as-number 65021 peer 2001:DB8:4::2 group leaf # ipv6-family unicast preference 20 200 10 network 2001:DB8:2:: 64 network 2001:DB8:4:: 64 maximum load-balancing 32 peer 2001:DB8:2::2 enable peer 2001:DB8:4::2 enable load-balancing as-path-relax # return
# sysname Leaf1 # vlan batch 100 # lacp priority 100 # interface Vlanif100 ipv6 enable ipv6 address 2001:DB8:100::1/64 ipv6 address FE80::300:3EFF:FE11:985 link-local mac-address 0000-5e00-0101 ipv6 nd proxy anyway enable ipv6 nd delete trigger link-down enable ipv6 nd direct-route enable ipv6 nd direct-route delay 120 ipv6 nd direct-route preference 1 # interface Eth-Trunk10 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 mode lacp-static lacp system-id 00e0-fc00-0000 # interface Eth-Trunk20 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 mode lacp-static lacp system-id 00e0-fc00-0001 # interface 100GE1/0/1 undo portswitch ipv6 enable ipv6 address 2001:DB8:1::2/64 port-isolate l3 enable # interface 100GE1/0/2 undo portswitch ipv6 enable ipv6 address 2001:DB8:2::2/64 port-isolate l3 enable # interface 100GE1/0/3 eth-trunk 10 # interface 100GE1/0/4 eth-trunk 20 # monitor-link group 1 port 100GE1/0/1 uplink port 100GE1/0/2 uplink port Eth-Trunk10 downlink 1 port Eth-Trunk20 downlink 2 timer recover-time 60 # bgp 65020 router-id 172.16.3.1 timer keepalive 10 hold 30 group spine external peer spine as-number 65009 peer 2001:DB8:1::1 as-number 65009 peer 2001:DB8:1::1 group spine peer 2001:DB8:2::1 as-number 65009 peer 2001:DB8:2::1 group spine # ipv6-family unicast preference 20 200 10 network 2001:DB8:1:: 64 network 2001:DB8:2:: 64 network 2001:DB8:100:: 64 import-route direct maximum load-balancing 32 peer 2001:DB8:1::1 enable peer 2001:DB8:2::1 enable # return
# sysname Leaf2 # vlan batch 100 # lacp priority 100 # interface Vlanif100 ipv6 enable ipv6 address 2001:DB8:100::1/64 ipv6 address FE80::300:3EFF:FE11:985 link-local mac-address 0000-5e00-0101 ipv6 nd proxy anyway enable ipv6 nd delete trigger link-down enable ipv6 nd direct-route enable ipv6 nd direct-route delay 120 ipv6 nd direct-route preference 1 # interface Eth-Trunk10 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 mode lacp-static lacp system-id 00e0-fc00-0000 lacp port-id-extension enable # interface Eth-Trunk20 port link-type trunk port trunk pvid vlan 100 port trunk allow-pass vlan 100 mode lacp-static lacp system-id 00e0-fc00-0001 lacp port-id-extension enable # interface 100GE1/0/1 undo portswitch ipv6 enable ipv6 address 2001:DB8:4::2/64 port-isolate l3 enable # interface 100GE1/0/2 undo portswitch ipv6 enable ipv6 address 2001:DB8:3::2/64 port-isolate l3 enable # interface 100GE1/0/3 eth-trunk 10 # interface 100GE1/0/4 eth-trunk 20 # monitor-link group 1 port 100GE1/0/1 uplink port 100GE1/0/2 uplink port Eth-Trunk10 downlink 1 port Eth-Trunk20 downlink 2 timer recover-time 60 # bgp 65021 router-id 172.16.4.1 timer keepalive 10 hold 30 group spine external peer spine as-number 65009 peer 2001:DB8:3::1 as-number 65009 peer 2001:DB8:3::1 group spine peer 2001:DB8:4::1 as-number 65009 peer 2001:DB8:4::1 group spine # ipv6-family unicast preference 20 200 10 network 2001:DB8:3:: 64 network 2001:DB8:4:: 64 network 2001:DB8:100:: 64 import-route direct maximum load-balancing 32 peer 2001:DB8:3::1 enable peer 2001:DB8:4::1 enable # return
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