Routing

I found show spanning-tree commands works on Cisco 7600 router. My understanding is that spanning tree is needed on switches to avoid loops. why do we need spanning tree on routers?. Please advise

I'm looking for a tool that can find max avail bandwidth between two Cisco router each connected to the internet with VPN tunnels to each other. Any suggestions?

I just want to make sure I understand properly, once a BGP neighbor is established, do these neighbors immediately start exchanging routes currently present in their BGP table without any sort of redistribution or "network" commands? For instance, th...

Hello,  I am not sure I understand what Solarwinds is reporting so many CPUs and some of those CPUs are in high utilization. Knowing that the NX7009 with 2 SUPs comes with only 8 CPUs. See attachment.  Can someone explain to me why we're seeing so ...

Hi Experts, Can i know please that how to configure same vlan with same IP subnet in two different locations and  i thought that configuring GRE would be fixed but no result. i did google and found that it would be possible by using  L2TPv3 but my h...

I have created new interface Dialer 2 on the router Cisco 3825. I have associate same with Fastethernet port. A virtual Access interface has been crated for same automatically.  However Dialer 2 interface not getting IP address from Modem. There is a...

Hi All, I am using iPerf to do a speed test and using a window size of 1Mb . I can see that iPerf makes an initial connection without using the scaling flag and that is then finished. It makes a second connection this time with scaling flag set whi...

Hello I'm a student currently having a course on data communication and such, and we're currently building a network in GNS3 that contains Frame Relay routing among other things as practice I'm having problems with DLCI however and i can't understan...

Hi Expert,  I have a Cisco Router and i want to enable IPTV multicast stream from interface VLAN 100. The aim is to replace my ISP box by a cisco router,  I have identified an issue  With Wireshark I have a trace with the ISP Box and we can see IGMP ...

Hi, We have CME version 10.5 in our Main branch with 100 SIP lines from service provider.We are opening a remote branch at a different location where we want to use the existing SIP lines from main branch to make outgoing calls and we also want 4-di...

We are testing a EoMPLS VC type 5 / Ethernet vc in our lab on VSS setup and not able to pass traffic.  The VSS is Sup2T (15 + code) and we have a single AC connected to switch 2 of the VSS.. with switch 1 currently having the active sup in the system...

This question regards whether or not I have to upgrade the firmware on an ASR1006 device, when upgrading IOS version. Device is currently running IOS XE - 03.04.05.S (Version 15.1(3)S5) - asr1000rp1-advipservicesk9.03.04.05.S.151-3.S5.bin I am upgrad...

The Internet is full of articles advising that NetFlow v5 does not support 'ip flow egress' but I think this must be incorrect or outdated? I have configured a Cisco 7200 with only 'ip flow egress' enabled (on WAN) with NetFlow version 5 and the flow...