Implement CUBE high availability as Local Gateway

Publisher

Cisco

URL

https://help.webex.com/en-us/article/ndiofhf/Implement-CUBE-High-Availability-as-Local-Gateway

Published

2026-09-01

Updated

unknown

Accessed

2026-09-24

HTTP status

200

License

Cisco website terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• In show redundancy application group all a healthy pair shows My Role ACTIVE on one router with Peer RF state STANDBY HOT. in context
• For CUBE HA as Local Gateway, Cisco recommends the default RG timers (delay 30 and reload 60 seconds) and a holdtime of at least three times the hellotime. in context
• Configuration on both CUBEs of the HA pair must be identical, including physical configuration. in context
• CUBE HA as a Webex Calling Local Gateway requires IOS XE 17.9.1 or later on a platform that supports both CUBE HA and Local Gateway. in context
• After HA configuration, Local Gateway configuration, whether registration-based or certificate-based, is applied on both HA CUBEs. in context
• Any router reloaded while in a CUBE HA relationship always boots up as Standby. in context
• The RG infra component uses an HSRP-like protocol exchanging keepalive and hello messages to negotiate each router's redundancy state, plus a transport for checkpointing call signaling and media state. in context
• Adding or removing the redundancy-group command under voice service voip requires a reload to take effect. in context
• Calls still in transit, for example in trying or ringing state, are not checkpointed by CUBE HA. in context
• Cisco documents Local Gateway high availability as layer-2 box-to-box CUBE redundancy using the Redundancy Group infrastructure on IOS XE 17.9.1 or later, with the Local Gateway configuration then applied to both CUBEs. in context

Cite this source record

APA

WarmTransfer. (2026, September 1). Implement CUBE high availability as Local Gateway. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-ndiofhf-cube-ha-local-gateway

BibTeX

@misc{warmtransfer-cisco-help-ndiofhf-cube-ha-local-gateway,
  title  = {Implement CUBE high availability as Local Gateway},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-ndiofhf-cube-ha-local-gateway},
  note   = {Cisco, accessed 2026-09-24}
}