Switching

Hi All,We're experiencing a strange situation on a 3750G PoE switch running advanced IP Services featureset whereby frames switched solely at layer 2 (e.g. between IPv6 hosts within the same vlan), but as soon as the frame is forwarded at layer3 thro...

Hello All,I need some help with cisco 6509 PIM configuration.I have a network where cisco is connected with third party switch, which is sending pim hello packet to cisco in a vrf and cisco is showing this type of message:"Ignored unknown option 2 in...

I have heard that if we attact a hub in between the wires we are easily able to analyse the traffic that goes through that wire,Tell me the full procedure how to set it up, with what softwares and OS I can analyse the traffic. ?

I have a ME 3400 that is acting flaky.  I have this device acting as a distribution switch and it is reachable on VLAN 127, which is one of the VLANS trunked to our core network.   When I try to configure one of the fastethernet ports (changing duple...

recently my coustomer bought a 4506E switch(SUP6L-E;WS-X4548-RJ45V+;PWR-C45-2800ACV) .when use their old cables(568a-568b),they found that the 7911 phones(no standalone power) displayed :"ethernet not connect",and the switch console (show power inlin...

hi all,attached my topology.i need some way, to propagate network 200.0.0.0/24 resides on the middle switch on vlan 200.the network showld be propagate to all ospf stub areas, so that routers that not directly connected will know how to reach it.curr...

Hi Guys,I'm currently installing some new switches (2960-S) for a customer.  They have this building managemenet syste,m that requires connectivity throughout the LAN.  I've segmented them into a VLAN (VLAN4) and given them an ip arange of 192.168.1....

I have several 3560E switches in  my environment running c3560e-universalk9-mz.122-52.SE.bin code. When I pull a fan Module out I get the following messsages:23w0d: %HARDWARE-5-FAN_NOT_PRESENT: Fan  is not present23w0d: %PLATFORM_ENV-1-FAN_NOT_PRESEN...

I have an existing switch stack that is comprised of two (2) WS-C3750G-24TS that are interconnected using the stackwise stackng cables. I have a third switch to add into this stack for expansion. Is there anything special I need to do to the switch b...

Hi:I am not able totest this as i havr no lab equipment.Will the following commands on Nexus 5K send all traffic from vlan 1400 to 10.10.10.1 and all traffic from vlan 1500 to 20.20.20.1?ip route 0.0.0.0 0.0.0.0 vlan 1400 10.10.10.1ip route 0.0.0.0 0...

Hi All,All else being equal, which (if either) will have more CPU impact,ip access-list extended fred permit ip host 1.1.1.1 any range 8000 8049orip access-list extended fred permit ip any any range 8000 8049 It's being applied to MQC QoS marking. Re...

i currently have a flat VLAN in my network.there is not vlan in my switch.all goes by 172.16.4.0/22.network device starts from 172.16.4.0/22servers start from 172.16.5.0/22users start from 172.16.6.0/22.users get dhcp address from my servers.i am tol...

Hi All,Please can someone assist / confirm if the HWIC-1T is using the same (CAB-X21MT) cable used on a WIC-1T card.I read somewhere that the CAB-21MT is not supported on an HWIC-1T and I'm not sure if this is true.Thanks,