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Cisco Employee

NSO HA

Hello team,

I have NSO HA setup with two nodes. I've noticed master IP become unresponsive after a time period. I'm running NCS 3.3.3.

While master IP is unresponsive, the interface is up and HA status is good too and also I can access both master and slave nodes individually.

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

    link/ether fa:16:3e:d1:62:84 brd ff:ff:ff:ff:ff:ff

    inet 10.114.209.213/27 brd 10.114.209.223 scope global dynamic eth0

       valid_lft 69420sec preferred_lft 69420sec

    inet 10.114.209.215/27 scope global secondary eth0:ncsvip

       valid_lft forever preferred_lft forever

admin@ncs# show ha-cluster

NAME                       STATUS

-----------------------------------

tsoe-nso-master.cisco.com  master

tsoe-nso-slave.cisco.com   slave

My HA configuration is as below.

ha-cluster auto-start enable

ha-cluster master-ip enable

ha-cluster master-ip vip 10.114.209.215

ha-cluster master-ip member tsoe-nso-master.cisco.com  interface eth0 !

ha-cluster master-ip member tsoe-nso-slave.cisco.com  interface eth0 !

ha-cluster members tsoe-nso-master.cisco.com  address 10.114.209.213

role    master

!

ha-cluster members tsoe-nso-slave.cisco.com

address            10.114.209.214

role               slave

transition-enabled true

master-capable     true

!

"ncs --status" shows HA is in good shape while master IP is unresponsive.

vsn: 3.3.3

SMP support: yes, using 2 threads

Using epoll: yes

available modules: backplane,netconf,cdb,cli,snmp,webui

running modules: backplane,netconf,cdb,cli,snmp,webui

status: started

cluster status:

  mode: master

  node id: tsoe-nso-master.cisco.com

  connected slaves: 1

I’m running this two nodes in OpenStack environment with RHEL 7 OS image and virtual IP is assigned as an address pair address. Any help will be appreciated.

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