网络规划设计
locator及sid等规划看拓扑图上，已标出，保证所有设备唯一
1、使能各接口的IPv6转发能力，配置各接口的IPv6地址。
2、在各接口上使能IS-IS，配置Level级别，指定网络实体。
3、在ne1和ne6上配置VPN实例。
4、在ne1和AR1之间建立EBGP对等体关系，另一边ne6和AR2采用静态联接配置
5、在ne1和ne6之间建立MP-IBGP对等体关系。
6、在ne1和net6上配置SRv6。配置IS-IS的SRv6能力。
7、最终实现两边使用骨干网跨域srv6 BE的方式11.1.1.1和22.1.1.1互联互通
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ne1配置
ne1\]dis current-configuration sysname ne1 router id 1.1.1.1 //配置全局router id ip vpn-instance a //起实例 ipv4-family route-distinguisher 1:1 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity segment-routing ipv6 encapsulation source-address 2001:1::1 //srv6用loopback口地址做为封装源地址 locator 1 ipv6-prefix 2002:1:: 64 static 32 //配置本设备的locator，保证全网唯一 opcode ::1 end-dt4 vpn-instance a //手动定义end dt4，不用手动用动态生成也可以 isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0001.00 ipv6 enable topology ipv6 //开户多拓扑 segment-routing ipv6 locator 1 auto-sid-disable //关掉动态自动生成sid功能 interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:12::1/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ip binding vpn-instance a //绑定vpn实例 ip address 10.0.11.1 255.255.255.0 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::1/128 //全网唯一 isis ipv6 enable 1 interface LoopBack1 //主要是给router id用 ip address 1.1.1.1 255.255.255.255 bgp 100 router-id 1.1.1.1 //ipv6 router id必须配，不配建立不了 peer 2001:1::6 as-number 200 peer 2001:1::6 ebgp-max-hop 255 //ebgp默认1跳，改成多跳 peer 2001:1::6 connect-interface LoopBack0 ipv4-family unicast undo synchronization ipv4-family vpnv4 policy vpn-target peer 2001:1::6 enable peer 2001:1::6 prefix-sid //发布前缀sid ipv4-family vpn-instance a peer 10.0.11.2 as-number 65100 segment-routing ipv6 locator 1 auto-sid-disable //关掉自动生成 segment-routing ipv6 best-effort //使用srv6 be封装 ### ne2配置 \[ne2\]dis current-configuration sysname ne2 router id 2.2.2.2 isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0002.00 ipv6 enable topology ipv6 //中转节点只作普通的ipv6转发就行了，不做其它动作 interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:12::2/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ipv6 enable ipv6 address 2001:DB8:23::2/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::2/128 isis ipv6 enable 1 interface LoopBack1 ip address 2.2.2.2 255.255.255.255 ### ne3配置 \[ne3\]dis current-configuration sysname ne3 router id 3.3.3.3 isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0003.00 ipv6 enable topology ipv6 ipv6 import-route bgp //把学到对端AS中ne6的loopback地址和locator前缀发布到自己的IGP中，让本as及ne1学到，用于ne1和ne6建立mp-bgp interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:23::3/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ipv6 enable ipv6 address 2001:DB8:34::3/64 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::3/128 isis ipv6 enable 1 interface LoopBack1 ip address 3.3.3.3 255.255.255.255 interface NULL0 bgp 100 router-id 3.3.3.3 peer 2001:DB8:34::4 as-number 200 //和对端asbr建立普通的bgp邻居 ipv4-family unicast undo synchronization ipv6-family unicast undo synchronization network 2001:1::1 128 //发布ne1上的loopback地址给对端AS中ne6学到，用来建立mp-bgp network 2002:1:: 64 //发布ne1上的locator地址给对端AS学到 peer 2001:DB8:34::4 enable //要在ipv6地址族这里确认一下 ### ne4配置 \[ne4\]dis current-configuration sysname ne4 router id 4.4.4.4 isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0004.00 ipv6 enable topology ipv6 ipv6 import-route bgp interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:34::4/64 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ipv6 enable ipv6 address 2001:DB8:45::4/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::4/128 isis ipv6 enable 1 interface LoopBack1 ip address 4.4.4.4 255.255.255.255 interface NULL0 bgp 200 router-id 4.4.4.4 peer 2001:DB8:34::3 as-number 100 ipv4-family unicast undo synchronization ipv6-family unicast undo synchronization network 2001:1::6 128 network 2002:6:: 64 peer 2001:DB8:34::3 enable ### ne5配置 \[ne5\]dis current-configuration sysname ne5 router id 5.5.5.5 isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0005.00 ipv6 enable topology ipv6 interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:45::5/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ipv6 enable ipv6 address 2001:DB8:56::5/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::5/128 isis ipv6 enable 1 interface LoopBack1 ip address 5.5.5.5 255.255.255.255 ### ne6配置 \[ne6\]dis current-configuration sysname ne6 router id 6.6.6.6 ip vpn-instance a ipv4-family route-distinguisher 2:2 vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity segment-routing ipv6 encapsulation source-address 2001:1::6 locator 1 ipv6-prefix 2002:6:: 64 static 32 opcode ::6 end-dt4 vpn-instance a isis 1 is-level level-2 cost-style wide network-entity 49.0001.0000.0000.0006.00 ipv6 enable topology ipv6 segment-routing ipv6 locator 1 auto-sid-disable interface Ethernet1/0/0 undo shutdown ipv6 enable ipv6 address 2001:DB8:56::6/64 isis ipv6 enable 1 undo dcn undo dcn mode vlan interface Ethernet1/0/1 undo shutdown ip binding vpn-instance a ip address 10.0.62.6 255.255.255.0 undo dcn undo dcn mode vlan interface LoopBack0 ipv6 enable ipv6 address 2001:1::6/128 isis ipv6 enable 1 interface LoopBack1 ip address 6.6.6.6 255.255.255.255 interface NULL0 bgp 200 router-id 6.6.6.6 peer 2001:1::1 as-number 100 peer 2001:1::1 ebgp-max-hop 255 peer 2001:1::1 connect-interface LoopBack0 ipv4-family unicast undo synchronization ipv4-family vpnv4 policy vpn-target peer 2001:1::1 enable peer 2001:1::1 prefix-sid ipv4-family vpn-instance a default-route imported import-route static //导入全局配置的静态路由，并通过bgp传给对端AS中的ne1 segment-routing ipv6 locator 1 auto-sid-disable segment-routing ipv6 best-effort ip route-static vpn-instance a 22.1.1.1 255.255.255.255 10.0.62.2 //去往CE也就是AR2的回程路由 AR1和AR2普通常规配置就省略了！！！ ### 验证 IGP查看  end.dt4对应的实例查看  路由查看      locator查看  AR1路由查看及联通性测试 