We have a stack of 3 2960S's switches connected to a Cisco 3750X via a 4 port copper Etherchannel, intermittently the users are losing connection to the internet and with a host connected to the Master switch running a continuos ping to the 3750X pings are lost, we have replaced the Master switch and both GLC-T's. We also split the stack and had a single 1Gb connection to each switch from the core, we ran continuos pings from hosts on each switch and the only one to drop pings was the one on the Master switch. Versions and configs below, any thoughts ?
Version 3750X - 15.0(2) SE4
Version 2960S - 15.0(2) SE5
Port-Channel Config 3750X in attached file called 3750x
Port-Channel Config 2960S in attached file called 2960s
Also auto QoS has been enabled on both 3750X and 2960S.
Thanks for the reply, I will be doing more testing tomorrow, load balancing method is the default which I beleive is source-mac. It's not only pings but all users are unable to reach the internet, or local servers.
Again thanks for the replies, I did a continous ping from a PC connected to the switch stack to an address on the Internet, I also had a continous ping going from another client on a different switch stack to the same internet address. The PC connected to the suspect switch stack dropped about 15 pings but the other PC was fine. I've now set up two syslog servers with the stack logging to one and the core to the other, also I've changed the stack master to be the middle switch which has no up links connected to it. Customer will start monitoring on Monday.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...