Switching

Hi There, I have the following HP switch configuration which needs to be adapted to a Cisco 3550, as I am still relatively new at this was hoping someone could assist.hostname "NC_LAN"interface 19 no lacpexitinterface 20 no lacpexittrunk 19-20 Tr...

Hi, I met quite often the opinion that Cisco's implementation on Ethernet loopback keepalives (Ether type 0x9000) make life difficult when your STP doesn't converge fast enouch. We had such a bad experience when all our switches put their uplinks in ...

Is it possible to upgrade the blade firmware (not the rommon firmware)on the Sup IV?There appears to be an issue with either the supervisor IV's (WS-X4515) firmware or the GE blade's (WS-X4418-GB) firmware. Currently the supIV is running version 1.2...

Hi,I have sup720 on 6509 chassis....Can I use the 6748-GE-TX line card with DFC and with DFC both in same chassis ?If yes, What will be restriction /limitation like can i configure Etherchannel consist of 4 GE port , 2 port from 6748(without DFC) and...

We are implementing a new layer 3 design and I am somewhat confused on how/where the FWSM's, ASA's, WISM's, IDSM's, NAM's should be placed. If we are truely only routed and can no longer extend vlan's, what is the best method to contain devices into ...

There is a grid in some of the books giving you the types of cable to connect to different devices, where is it? or where can i get it? thanks in advance.

I have fa0/1 and fa0/5 in the same vlan on switch 3560.Now I just want to forward all the traffic from fa0/1 to fa0/5.How can I do that? Thanks a lot!!

Packets don't get marked when we configure service-policy input qos-map on the interface which traffics comes from (g3/1). If we however configure service-policy output qos-map on our layer 3 vlan interface (vlan 698) we can see the right DSCP markin...

Hi,Sorry if this has been answered before;How many FastEthernet interfaces (routable with individual IPs) would I gain if I added the 4-port EtherSwitch onto a compatible router. I have a scenario where I need more Ethernet interfaces and I'm relucta...

Hi,we have some Cisco switches in IBM Bladecenters:CIGESM Software (CIGESM-I6Q4L2-M), Version 12.1(22)EA9.They are connected to 6513 SUP720.I'm starting the following monitoring session on 6513:monitor session 1 source remote vlan 500monitor session ...

I have ROUTER RIP configured on our 4510 Switch running IOS 12.2(25)EW1 . I am getting ICMP notices several hops away that the TTL has expired. The TTL is 1. How is this possible? I mean ICMP notices from routers several hops away.

Ugh! I need to carry my VLANS from one site to another over a WAN I have no control or help from. They do not support QinQ, MPLS, etc. I think I know I can do this with GRE but that is all I can find in searches. I really need a HOWTO or a sample. ...

Hi all, can anyone tell me what the accepted ok response time for a ping to a device on a lan is ?

Hi,I'm trying to configure port-security on my port. I want to allow my Avaya VoIP phone and my laptop to only access this port. However, I configured port-security on the port with switchport port-security mac-address HHHH.HHHH.HHHH. Ofcourse I con...

I have two switches 3550 WS-C3550-48-SMI with the versions of IOS Version 12,1 (13) EA1, Version 12,1 (19) EA1c had been added the interfaces fa0/38, fa0/39 and one of switches and in the other switch was configured the interface fa0/44, fa0/43 both ...