I am suddenly seeing a tremendous increase in ifInDiscards but seeign no errors reported via the "sh port" command on one of my 6513's. AM not seeing an increase in actual traffic as reported via snmp, but the ifInDiscards has jumped significantly. Any hints on what to look for?
This probably doesn't indicate a problem with the functioning of the switch. These are error-free frames discarded by the switch for one of the following reasons.
"IfInDiscards?This is a count of valid frames received, which are discarded by the forwarding process of the switch. This is the same counter as the In-Discard field in the output from the show Mac command. You see this when you receive traffic on a trunk for a specific VLAN while the switch does not have any other ports on that VLAN. You also see this counter increments when the destination address of the packet is learned on the port the packet is received on, or when a port is configured as a trunk and that trunk is blocking for VLANs'
I am currently pruning back the vlan on the trunks of the this switch to reduce spanning tree overhead. Should I also go to the far end switches and prune back those same vlan's to reduce or eliminate these errors?
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
Manager of IENova, an Oil & Gas company. Currently he works with Cisco
IOS® and Cisco IOS XE platforms, and NX to some extent. He has also
worked as a Senior Engineer with the Routing P...
In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...