Switching

Uplinkfast allows for fast failover to a redundant and blocked path in the event that the active and forwarding uplink fails. Simple.But how does uplinkfast effect failover if he active and forwarding uplink is really a port channel with 4 uplinks? L...

Hi,I have One Switch 3548 with few vlans configured. Now I bought one more switch and want to do the following :Switch 3548 has One VLan as 880 with network as 10.8.8.0 for ports 1 to 8. Now I added one more switch in the network, configured VLan 880...

Our logs are filling up with these messages from our c6500:Apr 30 16:26:52: %CONTROLLER-SP-3-TOOBIG: An attempt made to send giant packet on Port-channel5 (1566 bytes from 82DD282, max allowed 1356)-Traceback= 40AF0E00 40C9DC54 40814F74 4081B98C 4081...

I'd like some detailed opinion on this...Is it a good practice to establish eigrp neighborships between core routers using the SVIs as the routed interfaces?In other words, I have 2 core switches running eigrp, with SVIs for about 20 vlans configured...

Hi,I've read that a static route will take priority over a route learned via a routing protocol becuase the static route has a lower AD compared to the routing protocols. I'm a little unsure as to what this means, let's say we have the following rout...

I recently started to look into the configuration of the 6 2950 switches that have been setup "forever" and need help understanding something.   Is there a specific uplink port or does the switch automagically know?Here's our setup:Internet -> PIX 50...

Hi there.We use a Catalyst 6500 VSS System as CORE and Nexus 5010 in the Access Layer. (no aggregation layer). So both System can made Port-Channel spanned over two Chassis.This is the actual Design. Each link is 10G. The speciality is, we only use o...

Existing enviroment: primary site presently has a data center 100 feet away. There are 12 fiber strands coming from the primary site to the dc.  Presently there's a 3560 switch stack in the dc. There's 2 6509 core's at the primary site. Each core swi...

Are there any disadvantages to having a 3750 stack? I realize that the it provides you with hardware redundancy. If the master switch fails, a member will become master and the stack will continue to function. However, does it protect from software r...

i have a Sup V 10GE that got into rommon when it was upgraded to a different IOS.It failed to boot to the new IOS and stops at the error below and reboots again.Rommon reg: 0x0E000380#################################UNHANDLED ROMMON EXCEPTION at PC=0...

Hi,I have the folowing network scenario:In the central node:   1 Catalyst 6509   2 FWSM (failover and routed mode configured)In the remote locations:    1 Catalyst 3560GI want to have more than one vlans behind catalyst 3560G switches.How i configure...