if the local node misses GLBP hellos of one of other node(s) it can change state as reported in the log messages:
000661: Dec 9 22:04:54.662 EST: %GLBP-6-FWDSTATECHANGE: Vlan138 Grp 1 Fwd 1 state Listen -> Active 000662: Dec 9 22:04:56.666 EST: %GLBP-6-STATECHANGE: Vlan138 Grp 1 state Active -> Speak 000663: Dec 9 22:04:56.666 EST: %GLBP-6-FWDSTATECHANGE: Vlan138 Grp 1 Fwd 1 state Active -> Listen
this can be caused by a saturated link or by high cpu on neighbor device.
You should investigate also on the companion devices that take part at the same GLBP group.
Show CommandPurposeCiscoICX-RuckusShow Spanning tree infoShow spanning-treeshow 802-1wVerify Port-Channel / Link aggregation infosh lag briefsh etherchannel summaryShow CDC/LDP neighbor infoshow cdp neighbors detailsh lldp neighbors de sh mac a...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.
Introduction to SD-Access Multicast
The document describes the Cisco DNAC UI workflow introduced as part of the Cisco DNA Center1.3.3 release. The document covers the components of Multicast forwarding on SD-Access fabric and the configuration pushed to...