XE SD-WAN: XE SD-WANルータ(cEdge) VRRPについて

Hirofumi Nonose · ‎2019-04-25

はじめに
設定情報
show コマンド
参考情報

はじめに

本ドキュメントでは、SD-WANルータを使用し、VRRP(Virtual Router Redundancy Protocol)を設定する手順について解説します。本ドキュメントの設定については、XE SD-WANルータ(Version 16.10.1)を使用します。vManageからTemplateを使用し、VRRPの設定が可能となっていますが、本ドキュメントでは、CLIによるVRRPについて解説します。

設定情報

cEdge1#sh run int GigabitEthernet2.10
(snip)
interface GigabitEthernet2.10
encapsulation dot1Q 10
vrf forwarding 10
ip address 172.16.101.1 255.255.255.0
ip mtu 1496
vrrp 1 address-family ipv4
priority 110
vrrpv2
track omp shutdown
address 172.16.101.254 primary
exit-vrrp
end

priority [value]

　　VRRPのグループプライオリティ値の設定に使用します。プライオリティを割り当てることで、アクティブおよび

バックアップルータを選択するときに役立ちます。 default 値は、100。

track omp [shutdown | decrement <decrement-amount>]

OMP(Overlay Management Protocol)のセッションをトラックし、OMPセッション喪失時にBACKUPルータへFailover

　　を実行します。

　　※OMP セッション喪失時のshow vrrp trackingの出力

00:00:54.104: VRRP Track number 1001 changed: state now DOWN
00:00:54.104: VRRPv4 GigabitEthernet2.10 [1] Track number 1001 changed: state now DOWN
00:00:54.104: %VRRP-6-STATE: GigabitEthernet2.10 IPv4 group 1 state MASTER -> INIT
00:00:54.096: %Cisco-SDWAN-Router-OMPD-3-ERRO-400002: R0/0: OMPD: vSmart peer 10.10.1.3 state changed to Init
00:00:54.096: %Cisco-SDWAN-Router-OMPD-6-INFO-400005: R0/0: OMPD: Number of vSmarts connected : 0
00:00:56.097: %Cisco-SDWAN-Router-OMPD-6-INFO-400007: R0/0: OMPD: Using empty policy from peer 10.10.1.3

cEdge2#sh vrrp brief
Interface Grp A-F Pri Time Own Pre State Master addr/Group addr
Gi2.30 3 IPv4 100 3609 N Y BACKUP 172.16.103.1 172.16.103.254
Gi2.20 2 IPv4 100 3609 N Y BACKUP 172.16.102.1 172.16.102.254
Gi2.10 1 IPv4 100 0 N Y MASTER 172.16.101.2(local) 172.16.101.254

show コマンド

show vrrp brief

cEdge1#show vrrp brief
Interface Grp A-F Pri Time Own Pre State Master addr/Group addr
Gi2.20 2 IPv4 110 0 N Y MASTER 172.16.102.1(local) 172.16.102.254
Gi2.30 3 IPv4 110 0 N Y MASTER 172.16.103.1(local) 172.16.103.254
Gi2.10 1 IPv4 110 0 N Y MASTER 172.16.101.1(local) 172.16.101.254

cEdge2#show vrrp brief
Interface Grp A-F Pri Time Own Pre State Master addr/Group addr
Gi2.30 3 IPv4 100 3609 N Y BACKUP 172.16.103.1 172.16.103.254
Gi2.20 2 IPv4 100 3609 N Y BACKUP 172.16.102.1 172.16.102.254
Gi2.10 1 IPv4 100 3609 N Y BACKUP 172.16.101.1 172.16.101.254

show vrrp detail

cEdge1#sh vrrp detail
(snip)
GigabitEthernet2.10 - Group 1 - Address-Family IPv4
State is MASTER
State duration 1 hours 12 mins 53 secs
Virtual IP address is 172.16.101.254
Virtual MAC address is 0000.5E00.0101
Advertisement interval is 1000 msec
Preemption enabled
Priority is 110
Track object omp state UP shutdown
Master Router is 172.16.101.1 (local), priority is 110
Master Advertisement interval is 1000 msec (expires in 506 msec)
Master Down interval is unknown
VRRPv3 Advertisements: sent 7545 (errors 0) - rcvd 11
VRRPv2 Advertisements: sent 7545 (errors 0) - rcvd 1
Group Discarded Packets: 10
VRRPv2 incompatibility: 10
IP Address Owner conflicts: 0
Invalid address count: 0
IP address configuration mismatch : 0
Invalid Advert Interval: 0
Adverts received in Init state: 0
Invalid group other reason: 0
Group State transition:
Init to master: 0
Init to backup: 3 (Last change Tue Apr 16 08:00:19.695)
Backup to master: 3 (Last change Tue Apr 16 08:00:23.265)
Master to backup: 0
Master to init: 2 (Last change Tue Apr 16 07:58:58.695)
Backup to init: 0

その他

show vrrp
show vrrp statistics
show vrrp all
debug vrrp tracking
debug vrrp event
debug vrrp log
debug vrrp process
etc

参考情報

Configuring VRRP (vEdge)