Switching

I am using autorp how can i preven any new rp with higher ip address from taking over, rp-announce-filter requires me to specify the rp specifically which should be denied, what if I do not know what the new rp is going to be?

Hello, Please your help with the following thing. I try without success to form Device Center configure crendential:WS-C2960-24TT-L 12.2(25)FX, 12.2(25)SEE1 and 12.2(25)SEE2WS-C2960G-24TC-L 12.2(25)SEE2andWS-C3560E-24TD 12.2(35)SE2On having vali...

From the following output what does the DSX1 means? Thanks!!router#sh int Serial0/1/0:15Serial0/1/0:15 is down, line protocol is down Hardware is DSX1 MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 ...

I'm interested in what might cause RCV Discards on 10GB interfaces. I'm speculating it may be related to buffer settings on the switch, but I'm looking into any and all possibilities to consider.

Hi all, does proxy arp only work if the subnets are within each other, ie, one pc is on 172.16.1.1/16 the other 172.16.3.1/24, or can you have totally different networks and it will work?

I have need to set up some QoS for a particular interface. Our network isnt configured for QoS as yet, so this will be a one-off limited implementation.The router is a 3825 running 12.4. Behind the router are a number of networks in the 10.2 range. T...

Small site with half a dozen 12.2 IOS switches 3550, 2960, 4506. All are running VTP version 2 with the 4506 as the server. When adding a new 2960 switch with a blank revision number, configured to use v2, the version changes to v1 when it is added a...

I have a Catalyst 3750 POE - 24 port switch that is a part of a stack. This switch is under-utilized in this stack, so I want to move it to another closet. Will this process be as simple as erasing the configuration of the 24-port switch, and the re...

Hi All,I am trying to design a small LAN using 3 Extreme Summit switches as access switches, all L2 only, 1 Cisco 6509 as core/distribution, and 1 Cisco 3825 router for WAN access. There are 3 VLANs required, 1 on each Extreme switch. What is the b...

Hi all, when installing certs on my asa for site to site vpn, I have been sent 2, one is a ca cert and the other is a identity cert, my question is, what are they and what are they used for ?

Hi, i'm facing the problem for the cisco 6509E which error message as below:"Autoboot: failed, BOOT string is empty"After this i tried to boot into the flash card which as below:rommon 1 > boot slot0:Error : compressed image checksum is incorrect 0x3...

I will be performing "Performing a Fast Software Upgrade " Following link explains that http://www.cisco.com/en/US/docs/routers/7600/ios/12.2SR/configuration/guide/redund.html#wp1089399My question is do i have to upload new IOS on both sup-bootflash:...

Hi everybody,I have a Catalyst 3550 with an etherchannel. The load-balancing algorithm is per-destination MAC. Is the switch able to load-balance multicast traffic?Best regardsStefano

Hi everyone,i have a two switches for two seperate depts,i would like to configure mac address filtering on the switch so that users cannot communicate with each other.can someone help with configuration guide.