Switching

Dear all, Do you know what is going on this message? How can we solve this error? %IGMP_QUERIER-4-QUERIER_MROUTER_DETECTED: An external IGMP querier or a multicast router has been detected in VLAN : %IGMP_QUERIER-4-SAME_SRC_IP_ADDR: An IGMP Gener...

we have one layer 2 port channel on cisco 3850, inside port channel, two ports, one E2/0/1 is up, the other port e3/0/1 is down, we now add the third port e3/0/3 into port channel, currently we shut down port e3/0/3.do we just need to unshut port e3/...

What is the recommended SFP for a C7000-9 to interface with a Nutanix cluster with 10GB SFP+ SI Network Adapter?

Hello,I need to implement spanning-tree MSTP on a networkNumber of switches on the network L2 : 400MSTP technical specifications1 domainNo vlan in instance 0Vlans 1-4094 in instance 1Is there a limitation on the number of switches supported by the MS...

Hi all, I have a cisco 2951 with logging size set at 8192 bytes. Like to check the following queries.1)What is the number of syslog messages that can be stored on my router with 8192 bytes2)upon reboot of my router i notice the syslog messages would ...

I have 6 sites with WS-C3560CG-8TC-S switches and one with the newer WS-C3560CX-8TC-S. We need to implement BFD on all of them to sort out our routing. 3560CG's are running ipbase 15.0(2)SE8The 3560CX is running ipservices15.2(4)E2 I can issue all re...

Hi all, when I do a show ip route on my router, what is the time it shows on the route? is that the time it last recieved an update? and generally if an interface goes down and routes are associated to that interface, does it remove the route out the...

I have a VOIP phone connected to a port that has the following configs:swtichport trunk encapsulation dot1qswitchport mode accessswitchport voice vlan 4 Is the swtichport trunk encapsulation dot1q really necessary? 

Dear All,  Please help me to solve this problem. I want to limit every Vlan to use limited bandwith. So there's no conflict in taking each other bandwidth. but after I've made this command, and check it in the show policy-map interface, there is no t...

Hello all, I'm looking for anyone with an access to 7301 hardware (POST) troubleshooting docs? I've received two decomm 7301s for the lab, and one is failing what seems to be a POST test. It fails to bring the status led to amber/green, however all f...

Hello All,From few days we are facing MAC flapping issue between both core and distribution switches in our DC network. Now we are using Cisco-3850 on Core netwrok and Cisco-2960 switches using in distribution and access network. So could you please ...