Switching

Hello Folks: I m using 2x'QSFP-H40G-CU5M' 40G links between nexus 93120TX pair for VPC.  For the 4 remaining QSFP ports on Nexus  93120TX ,i m using  'CVR-QSFP-SFP10G='  adopters to convert 40G into 10G with 'SFP-H10GB-CU5M=' to connect to Cat 6880 1...

I am running the below version...yes I do know that it is out of date... Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-IPBASE-M), Version 12.2(31)SGA9, RELEASE SOFTWARE (fc1) ...but I am currently in the process of updating to cat450...

I've got a rather unorthodox configuration I need help with. SIDE A:On the end that is configurable, sits a 2960 with ios 12.2. The ideal configuration for us, as a temporary measure, is to split this switch into 3 segments for each of the 3 uplink ...

Open a ticket and have not get it solved for two weeks, quick check to see if anyone has done it here?

I'm looking to get a Cisco router with these must have requirements: -VPN -filter content for websites that force https(such as facebook) -firewall -  Gigabit ethernet ports This would be replacing a netgear firewall router(small business of about 30...

Hi, I have a esx connected on nexus N2K-B22HP-P on port eth106/1/1, and  i have TX output error which increase a little bit, is it normal ? I have not counters errors. # sh int eth106/1/1 | in CRC|DROP|discard|error 0 runts 0 giants 0 CRC 0 no buff...

How to stop a Distributed Denial of Service (DDOS) attack on Cisco router

Hi, I was tried recovering ROMmon mode for the below switch with the IOS version c2960-lanbasek9-mz.152-2.E4.bin . I downloaded thi IOS to flash with Xmodem and set this IOS with Boot flash:c2960-lanbasek9-mz.152-2.E4.bin after that I'm not seen the ...

Hi, I have implemented this scenario wherein the DHCP server is 3 router's away or 3 hops away from the access layer switches. I have connected two cisco routers on the access switches that emulates PC1 and Rogue DHCP server in that order. I have sh...

is there any reason why we need to use end command? when we configure router or switch, we can input " do wr" at any time, but i do see people enter " end", then "wr", is there any difference? if no difference, why we just use "do wr"

Hello, I know that Cisco Nexus 5548UP is trusting by default DSCP or cos incoming his ethernet interfaces. Could you tell me how to configure untrust on other interfaces that don't need to be trusted because no ToIP servers in there ? I can't find an...