Switching

I have a couple of switches that are trunked via a LAN cable from another switch. I noticed that these switches sometimes have a hard time to SSH into. I get the error: "Connection timed out". After a while and a few tries I can connect just fine. I ...

Hi everyone,I'm trying to configure, on GNS3, the DHCP snooping+IPSG, the last one just for IP filtering.Anyway, when "ip verify source" is enabled on a port, hosts traffic is dropped regardless the IP DHCP snooping table is apparently correctly fill...

Hi Guys n Gals,I am having a bit of trouble with an assignment I am doing in packet tracer.I don't have the files handy until the eve, so will send pics/files later if required.My problem is that I have an access router connected to 3 separate cluste...

 I need to enable fips remotely the solution is to follow the below steps: Enable fips N9K N9k-Switch# conf t N9k-Switch(config)# no feature ssh N9k-Switch(config)# no ssh key rsa N9k-Switch(config)# ssh key rsa 2048 N9k-Switch(config)# feature ssh N...

Hi all, my customer has added IPv6 to their  BYOD WLAN subnet and are seeing  the following log messages on their Cat6k syslog %IPV6_ND-6-DUPLICATE_INFO: DAD attempt detected for FE80:: on VlanABC%IPV6_ND-6-DUPLICATE_INFO: DAD attempt detected for FE...

HI all,i'm quite new to RSPAN y sincererly didn't get it very well.Ok is for monitoring interface traffic for interface is configured,ok i configure the "sending port" and "receiving port in monitoring",but where this traffic is forwarded?Where can i...

Hello,I have configured DHCP server on Cisco 881. My customer like to know his IP address/MAC address.Is it possible to send some log of IP/MAC address to his server? Thanks Milan

Dear CISCO community,this is probably very rare question, and most likely I'll got negative response, but nothing to lose by asking. I found WS-C2960L-16TS-LL switch forgotten in basement, and it is damaged ( not working at all ) by water/humidity da...

Hi all,I teach at a networking academy at a community college and we have a few donated 3560X switches supplementing our student lab. Six are deployed in pods. The room has adequate climate controlIn the last 10 months we have had two fail, announcin...

Hello All, I have a question, I built the following DHCP pool and ACL on the Cisco core. When the ACL is on the computer doesn't able to get IP address from DHCP but when I turn off the ACL it works perfectly fine. So here is the question when comput...

I am experiencing high  cpu usage on one of my 4500x switches. Below is the output switch#show processes cpu sortedCore 0: CPU utilization for five seconds: 37%; one minute: 32%; five minutes: 29%Core 1: CPU utilization for five seconds: 19%; one min...

Hi ,I am seeing MPLS TE Tunnel is not coming up in my setup. I am using XRV node running version 7.11.2.  I have explained below the config and status.Could anyone please check and comment on this issue ?   XRV-A Config:                              ...

In an SDN architecture, which function of a network node is centralized on a controller?I. Creates the IP routing table Most Voted II. Discards a message due filteringIII. Makes a routing decision Most Voted IV. Provides protocol access for remote ac...