Switching

Discuss Catalyst brand switches with peers and experts.
cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

Labels

Forum Posts

I have Supervisor 5 on my 4510. I tried upgrading to the newest version and it wouldn't take the IOS. Could someone explain to me the difference in the 4000 and 4500 images? There are two choices when downloading the images.

When an interface (SVI or routed) comes up, does a Cisco switch or router send a gratuitous arp to update the arp cache of the hosts on that subnet ? I guess yes (?), BUT does he also do this for each secundary address or secundary HSRP active addres...

gnijs by Level 4
  • 1153 Views
  • 2 replies
  • 0 Helpful votes

In my day to day administration, over the years I have come across what must be a pretty common issue for hands on network engineers.That issue is logging onto multiple devices when they have been taken off the production environment network.For exam...

I have a router with multiple interfaces aggregating about 25Mb of traffic with a somewhat high CPU utilization. Ping times to the device fluctuate between 3ms and 180ms depending on the CPU load. We have WCCP directing traffic to a Barracuda web f...

Hi,I have some 10 servers which is runing multicast applications. Now I would like know those Multicast IP address of those servers.Is there any command to check the same in router.Regardssateesh

sateeshk10 by Level 1
  • 1498 Views
  • 11 replies
  • 0 Helpful votes

I have two 6509 switch connected via a fiber trunk on the SUP blade.All vlans are trunked on this trunk.Both switches have monitor sessions set up on them and I am getting an error trying to create an additional one.I am thinking I can remove one of ...

Hi All,We are in the process of upgrading our network infrastructure. We are planning to invest on 2X 6500 core switches, so I thought of proposing VSS to the management as the best solution. I have few questions that need to be clarified before that...

I have a question regarding BGP advertisements.I have an iBGP peer whose parameters are the following:router bgp 65000 no synchronization bgp log-neighbor-changes network 0.0.0.0 timers bgp 15 45 neighbor AS65000 peer-group neighbor AS65000 remote-as...

lamav by Level 8
  • 579 Views
  • 2 replies
  • 0 Helpful votes

I deleted the IOS on a 3750, now I need to use xcopy to reinstall a IOS. I will be loading c3750-ipservicesk9-mz.122-35.SE5.binWhen I put in the following command:switch: copy xmodem: flash:c3750-ipservicesk9-mz.122-35.SE5.binI get the following res...

Hi all, if I have 2 routers, 1 pri and the other secondary, if the primary fails and r2 becomes active, if the primary comes back, will it not fail back to the primary unless I use the preempt keyword? do I need to configure this on both or only 1 ro...