本文主要是介绍ENSP Pro VXLAN EVPN分布式网关部署配置,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
分布式网关
在BGP EVPN方式部署分布式网关的场景中,控制平面的流程包括VXLAN隧道建立、MAC地址动态学习;转发平面的流程包括同子网已知单播报文转发、同子网BUM报文转发、跨子网报文转发。该方式实现的功能全面,支持主机IP路由通告、主机MAC地址通告、主机ARP通告,可以直接使能ARP广播抑制功能。如果在VXLAN网络中采用分布式网关,推荐使用此方式。
对比集中式网关,分布式网关的arp条目比集中式网关的arp条目少,分布式网关只学习租户侧的arp条目,不学习网络侧的arp条目
拓扑
实验目的
全互联互通,underlay使用OSPF来使底层可达,后使用BGP EVPN传递Type 2(学习MAC和32位的主机路由),Type 3路由(动态发现VTEP,自动建立VXLAN隧道)
创建两个BD,1.0/24在BD1000,2.0/24在BD2000 网关分别为:192.168.1.254/24 192.168.2.254/24
业务接入点
TOR_S-1:vlan batch 10 20#interface GE1/0/1port link-type trunkport trunk allow-pass vlan 10 20#interface GE1/0/2port link-type access port default vlan 10#interface GE1/0/3port link-type access port default vlan 20
TOR_S-2:vlan batch 10 20#interface GE1/0/1port link-type trunkport trunk allow-pass vlan 10 20#interface GE1/0/3port link-type access port default vlan 10#interface GE1/0/2port link-type access port default vlan 20
leaf1_CE-3:bridge-domain 1000vxlan vni 5010#bridge-domain 2000vxlan vni 5020#interface GE1/0/3.10 mode l2encapsulation dot1q vid 10bridge-domain 1000#interface GE1/0/3.20 mode l2encapsulation dot1q vid 20bridge-domain 2000
leaf1_CE-4:bridge-domain 1000vxlan vni 5010#bridge-domain 2000vxlan vni 5020#interface GE1/0/3.10 mode l2encapsulation dot1q vid 10bridge-domain 1000#interface GE1/0/3.20 mode l2encapsulation dot1q vid 20bridge-domain 2000
underlay
leaf1_CE-3:interface LoopBack0ip address 1.1.1.1 255.255.255.255#interface LoopBack1ip address 11.11.11.11 255.255.255.255#interface GE1/0/1undo portswitchip address 10.1.1.1 255.255.255.252ospf network-type p2p#interface GE1/0/2undo portswitchip address 10.1.1.5 255.255.255.252ospf network-type p2p#ospf 1 router-id 11.11.11.11area 0.0.0.0network 1.1.1.1 0.0.0.0network 10.1.1.0 0.0.0.255network 11.11.11.11 0.0.0.0
leaf1_CE-4:interface LoopBack0ip address 2.2.2.2 255.255.255.255#interface LoopBack1ip address 22.22.22.22 255.255.255.255#interface GE1/0/1undo portswitchip address 10.1.1.9 255.255.255.252ospf network-type p2p#interface GE1/0/2undo portswitchip address 10.1.1.13 255.255.255.252ospf network-type p2p#ospf 1 router-id 22.22.22.22area 0.0.0.0network 2.2.2.2 0.0.0.0network 10.1.1.0 0.0.0.255network 22.22.22.22 0.0.0.0
spine_CE-1:interface LoopBack1ip address 33.33.33.33 255.255.255.255#interface GE1/0/1undo portswitchip address 10.1.1.2 255.255.255.252ospf network-type p2p#interface GE1/0/2undo portswitchip address 10.1.1.10 255.255.255.252ospf network-type p2p#ospf 1 router-id 33.33.33.33area 0.0.0.0network 10.1.1.0 0.0.0.255network 33.33.33.33 0.0.0.0
spine_CE-2:interface LoopBack1ip address 44.44.44.44 255.255.255.255#interface GE1/0/1undo portswitchip address 10.1.1.6 255.255.255.252ospf network-type p2p#interface GE1/0/2undo portswitchip address 10.1.1.14 255.255.255.252ospf network-type p2p#ospf 1 router-id 44.44.44.44area 0.0.0.0network 10.1.1.0 0.0.0.255network 44.44.44.44 0.0.0.0
underlay已经完成,ospf邻居已经建立成功
Overlay
leaf1_CE-3:evpn-overlay enable #ip vpn-instance abcipv4-familyroute-distinguisher 1:1vpn-target 11:1 export-extcommunity evpnvpn-target 11:1 import-extcommunity evpnvxlan vni 3000#bridge-domain 1000vxlan vni 5010evpnroute-distinguisher 1000:1vpn-target 5010:1 export-extcommunityvpn-target 11:1 export-extcommunityvpn-target 5010:1 import-extcommunity#bridge-domain 2000vxlan vni 5020evpnroute-distinguisher 2000:1vpn-target 5020:1 export-extcommunityvpn-target 11:1 export-extcommunityvpn-target 5020:1 import-extcommunity#interface Vbdif1000ip binding vpn-instance abcip address 192.168.1.254 255.255.255.0mac-address 0000-5e00-0001vxlan anycast-gateway enablearp collect host enable#interface Vbdif2000ip binding vpn-instance abcip address 192.168.2.254 255.255.255.0mac-address 0000-5e00-0002vxlan anycast-gateway enablearp collect host enable#interface Nve1source 1.1.1.1vni 5010 head-end peer-list protocol bgpvni 5020 head-end peer-list protocol bgp#bgp 65000router-id 11.11.11.11undo default ipv4-unicastpeer 33.33.33.33 as-number 65000peer 33.33.33.33 connect-interface LoopBack1peer 44.44.44.44 as-number 65000peer 44.44.44.44 connect-interface LoopBack1l2vpn-family evpnpolicy vpn-targetpeer 33.33.33.33 enablepeer 33.33.33.33 advertise irbpeer 44.44.44.44 enablepeer 44.44.44.44 advertise irb
leaf1_CE-4:evpn-overlay enable #ip vpn-instance abcipv4-familyroute-distinguisher 1:2vpn-target 11:1 export-extcommunity evpnvpn-target 11:1 import-extcommunity evpnvxlan vni 3000#bridge-domain 1000vxlan vni 5010evpnroute-distinguisher 1000:2vpn-target 5010:1 export-extcommunityvpn-target 11:1 export-extcommunityvpn-target 5010:1 import-extcommunity#bridge-domain 2000vxlan vni 5020evpnroute-distinguisher 2000:2vpn-target 5020:1 export-extcommunityvpn-target 11:1 export-extcommunityvpn-target 5020:1 import-extcommunity#interface Vbdif1000ip binding vpn-instance abcip address 192.168.1.254 255.255.255.0mac-address 0000-5e00-0001vxlan anycast-gateway enablearp collect host enable#interface Vbdif2000ip binding vpn-instance abcip address 192.168.2.254 255.255.255.0mac-address 0000-5e00-0002vxlan anycast-gateway enablearp collect host enable#interface Nve1source 2.2.2.2vni 5010 head-end peer-list protocol bgpvni 5020 head-end peer-list protocol bgp#bgp 65000router-id 22.22.22.22undo default ipv4-unicastpeer 33.33.33.33 as-number 65000peer 33.33.33.33 connect-interface LoopBack1peer 44.44.44.44 as-number 65000peer 44.44.44.44 connect-interface LoopBack1l2vpn-family evpnpolicy vpn-targetpeer 33.33.33.33 enablepeer 33.33.33.33 advertise irbpeer 44.44.44.44 enablepeer 44.44.44.44 advertise irb
spine_CE-1:bgp 65000router-id 33.33.33.33undo default ipv4-unicastpeer 11.11.11.11 as-number 65000peer 11.11.11.11 connect-interface LoopBack1peer 22.22.22.22 as-number 65000peer 22.22.22.22 connect-interface LoopBack1l2vpn-family evpnundo policy vpn-targetpeer 11.11.11.11 enablepeer 11.11.11.11 advertise irbpeer 11.11.11.11 reflect-clientpeer 22.22.22.22 enablepeer 22.22.22.22 advertise irbpeer 22.22.22.22 reflect-client
spine_CE-2:bgp 65000router-id 44.44.44.44undo default ipv4-unicastpeer 11.11.11.11 as-number 65000peer 11.11.11.11 connect-interface LoopBack1peer 22.22.22.22 as-number 65000peer 22.22.22.22 connect-interface LoopBack1l2vpn-family evpnundo policy vpn-targetpeer 11.11.11.11 enablepeer 11.11.11.11 advertise irbpeer 11.11.11.11 reflect-clientpeer 22.22.22.22 enablepeer 22.22.22.22 advertise irbpeer 22.22.22.22 reflect-client
验证
当leaf1_CE-3的VBDIF接口有了租户的ARP表项后,会通过BGP EVPN的Type 2传递32位的主机路由给对等体
下一跳为leaf1_CE-3的VTEP IP(NVE IP),但是如果leaf1_CE-3租户的arp表项超时了,该路由也会撤销。MAC表也是类似的,当leaf1_CE-3租户的MAC超时,leaf2_CE-4上对应从EVPN Type2学到的MAC表也是撤销
Spine有两个并且都作为RR为什么只有一条呢?
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