A network engineer is troubleshooting connectivity issues between two WLCs running 8.x code in SSO mode and finds that the redundancy management heartbeat is failing. Which packet type must be filtered for heartbeats when taking a capture to verify communication?
In the context of network engineering and troubleshooting connectivity issues between Cisco Wireless LAN Controllers (WLCs) in SSO (Stateful Switch Over) mode, the redundancy management heartbeat mechanism was updated in release 8.0. Prior to this release, ICMP was used for heartbeat messages; however, starting from release 8.0, UDP messages are utilized for this purpose. Therefore, when capturing packets to verify communication for the redundancy management heartbeat, filtering UDP packets is necessary.
Correct. Answer is B (UDP) Prior to release 8.0, ICMP ping is used to heart-beat with the peer WLC over the Redundancy Management Interface. As part of this feature for release 8.0, ICMP ping is replaced with a UDP message. https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/7-5/High_Availability_DG.html#pgfId-91515
It’s B. UDP
It says redundancy managemnet interface, RP is used UDP
My bad naswer should be B, Prior to release 8.0, ICMP ping is used to heart-beat with the peer WLC over the Redundancy Management Interface. As part of this feature for release 8.0, ICMP ping is replaced with a UDP message.