Switching

Cisco novice here...have a Cisco 2960 connected to a Cisco 3550 via Fiber (along with a few other 2950s and 2960s).  This has been running fine for years....starting Monday morning, the fiber link to one 2960 just randomly shuts off.   Doesn't get di...

If I set the next-hop in a route map to a local interface, will bad things happen? configs below...interface Vlan2 description User Subnet ip address 10.3.3.253 255.255.254.0 ip helper-address 10.77.42.12 no ip redirects no ip proxy-arp ip route-cach...

hi all,i checked my configuration now with ip san and it's connected with my 3750x 10G nic, there's no "spanning-tree portfast" command on it.  I don't remember if I have notes not to put it.  Just having error now when it's disconnect and reconnect ...

Hello,I need some technical Confirmation regarding SNMP Configuration in Cisco 6500 & 4500 series:Here is way to configure SNMP on Cisco 4500 series switches and also 3750, 2960 Series of Switches:Switch(config)#snmp-server enable trapsSwitch(config)...

I have a weird issue.  I have 3, 5548up switches.  I have performed a write erase on all so they are completely default.  All ports are on vlan 1.  The only changes to the default was that ports 1-4 are used in a port channel with vpc, and change the...

When i add support to m2Xl modules on a VDC, issuing the command "limit-resource module-type m2xl", does this command can cause network disruption ?Thanks

Hello All,I have never worked on a 6500 prior to now and i was tasked to configure netflow and export data to Orion Solarwinds. The config i entered on the switch is show belowAll vlan and lo 0 have ip addresses Switch(config)mls netflowSwitch(config...

Even in Catalyst 3750 and 4500 with ip services IOS, when I apply an ingress extended ACL in an VLAN interface to deny some kinf of traffic (ICMP), this traffic only match de permit ip any any sentence. Is there any limitation with ACL traffic restri...

HelloOne of ,y customers is building a network nacsed on CAT-7 cabling , and liek to use the WS-C2960S-48TS-S with the GLC-T SFP.From what I read the GLC-T support only CAT-6, can you calrify this for me if there is a new support in CAT-7 cabling ?Ro...

Hi AllWe have a nexus 5k, and it kind of got hung today... it is running   version 5.1(3)N2(1b).. the reset reason shows :Power down due to temperature sensor policy triggerIt doesnt look documented. Can anyone confirm what policy is it referring to?...

suppose R1 is the Bub and R2, R3 the spoke. we only have two pvc between R1&R2 and another pvc between R1&R3. R2 is coexisting bsr-candidate and rp-candidate (say, its ip for bsr is 2.2.2.2). I do not have any difficult to receive the rp mapping on R...