I'm using ERSPAN on my Nexus 5548 switches. Source: Interfaces on Nexus, destination: An Ubuntu box running Wireshark.
I'm able to capture packets with this method, but wireshark gives me TONS of expert errors saying: TCP Ack'd lost segment. This normal? My capture sources on the nexus is a vPC, so I should be getting traffic from both sides fo the VPC. Could it be lost packets at the NIC level? Anyway to tell?
Ok, spoke too soon. Still have errors. How can i see if it's a NIC issue? My host running wireshark is Ubuntu 10.04 LTS 64-bit. I have set MTU on my ethernet interface up to 1700 and set MTU in ERSPAN sessio to 1518, max it will allow.
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...