Switching

Scenario - 6509 connected via multiple etherchannels to a number of 3560s, 3750s and 3120s. I changed the etherchannel load-balancing algorithm, at which point the ports that were members of the etherchannel to the 3750Es all dropped out, but none of...

have need to write erase and reload from remote site.  Doc says write erase leaves the boot vars and mgmt0 information including ip addres, gateway and vrf routing information which is perfect.  But says NOTHING of login or password for ability to ac...

I have a 3560 switch (ip routing is NOT turned on) that has a route entry for a particular host? This switch is not acting as a router. How do I remove the entry (trying to avoid a switch reboot)?  This route was auto generated and is not listed in t...

Hi Team,We have C3750-IPBASE-M fiber switch as core switch, we found some ports are not working on the switch.when we connect those ports to the switch on the other side we don't have Link up, we considered as those ports are not working.now the ques...

I'm looking for a switch that will do the following:     1.  Restrict certain ports to only 1 IP address.  For example Port 1 can only have IP of 10.5.13.101, Port 2 can only have IP of 10.5.13.102, etc.     2.  Assign IP addresses to a workstation u...

Hello everyone,I just started at a new job and took over responsibility of the network infrastructure.  I am little confused about the current setup which is something i have never seen.  Additionally there are complaints about call quality on voip c...

Question about spanning tree / loop guard on trunk ports on 3750 backbone stack. Here is an extract from our backbone config. Has been running for four years with no problems.  switch 1 provision ws-c3750g-24psswitch 2 provision ws-c3750g-24ps!spanni...

Hi , DHCP relay not working in switch WS-C3560G-24PS image details - c3560-ipservicesk9-mz.122-55.SE.binits working if i keep DHCP server in same vlan as user ., wireshark says DHCP offer packets are currupted and there is no client ip (0.0.0.0 0.0.0...

I wanted to know if there is a way to control IPhones or similar type devices on either the Catalyst 6500, 3560 or 2960. I see alot of these type devices being assigned IP addresses and my network and want to eliminate their ability to connect.

Let me explain my topology:two 6506's in VSSI have a layer 2 vlan on the production network that connects the lab network (6509) via a 1gb fiber connectiona 4507 with a 20gb port channel to the VSSWhat I am doing:Moving a large file from the producti...