Server Networking

We are looking to implement NetFlow switching on our Catalyst 5509 switches in order to reduce the load being placed on our RSM module during peak traffic hours.

What could be causing new VLANs to not participate in the spanning-tree process after they are added?I have about 74 VLANs configured in a switching environment with 2 Catalyst 6500s in the core and Catalyst 35xx, 29xx and 5xxx as "desktop" switches.

I'm a CCNA student. I didn't a backup of the initial IOS image preinstalled by Cisco into my router. As you can imagine I have changed once and again the IOS imagine configuration.How can I get the initial IOS image preinstalled by Cisco?I really app...

Kentrox ACC3 to 3640 with NM-1A-T3, cab-atm-ds3 is 10'. need 25'....(also have ATTN kit)....1. any electrical problems with 25' cable.?....2...does cisco have cable 25'?

In what version of the IOS was the seconly parameter added to the sdlc address command?I am trying to enter the sdlc address C1 seconly command on version 11.2(8)P, but the seconly is not recognised.What version would we need to upgrade to...???Pleas...

I have 2 mainframes each with a unique NETID. Each mainframe has a fep. I run MSNF ( multiple systems networking facility ) between the FEP's. I was told that if I turn on APPN on my VTAM's, I could set up APPN nodes and run MSNF across CIPs instead ...

I have 2 7206's with CPA cards Escon attached to an IBM host. I'm trying to get IP failover to work without using EMIF. If I fail one of the boxes, IP rolls over to the second box. When I power that box back up, IP stops working. If I then do a s...

One of my customer would like information on the MTBF on the Cisco kit we use in their network.They recently had a high profile outage (it was a power issue) that highlighted a single point of failure. This has raised the issue with their senior mana...

We are working on a capacity planning project for one of our customers and we need an estimate on the maximum number of PVCs supported in the following situations:a)Cisco BPX 8620 and 8680 chassis with BCC-4V 128MB DRAM and 4 MB BRAM ?b)Maximum numbe...

How many Escon-Adapters are recommended to put into one Cisco7507 Router?

If I have two routers geographically separated, and each router has a 4 port T1 IMA ATM module, what kind of T1 service do I need to order? Let's say I want 3Mbps bandwidth. So, I have to order 2 access T1's at each location. Now, do these T1's ha...

With CCM 3.1, is it possible to support network side E1 Q.931 on a H.323 gateway. This would allow PABXs to connect to CCM, which then allow CCM to act as a tandem exchange.

What the IGX Interface Shelf function? I need a good anwser because the information in the site is incomplete. Does anyone have any example to use this?

Without any traffic shaping, queuing(ex: priority or custom) is only invoked when congestion occurs... correct?When FRTS shaping is used and custom queuing also specified, is the queuing only invoked when traffic exceeds the shaped speed, or is it al...

I have a VPN connection between a Cisco VPN client 1.1 and a router 827. The VPN tunnel is OK, I can ping some machine on the local network but when I want to access to Exchange Server via Outlook, I can't. Or I try to access to network shared drive ...