Switching

Hi.I have a multicast "client" sending a join request to a multicast group on vlan 11.The multicast source sending the multicast is on vlan 120.I use a L-3 switch Catalyst 3550 using PIM-DENSE mode configure on these two vlan interfaces.the join requ...

Hi,I am attempting to replace an old netgear router with a "real" router, a 1721. everything works great except passing SIP inbound from remote extensions. A normal ip nat inside source static forwarding works for one port, but the voice path RTP ad...

Hi,does anybody have a idea how we can "tunnel" one VLAN (only one) from one c65 to another c65 that are only connected by a layer 3 link (access port on both sides).thx

Hi allI need to use a bunch of Catalyst 3560E to set up a network with a double ring topology to add maximum redundancy. The network will trasfer VLAN tagged packets.I don't think the load will be high, and we need very fast recovery in case of a bro...

When removing a vlan from a router, do I have to remove the vlan from both the port-channel and from the trunk?What about removing the vlan from the switch?Are these configs ok?ROUTERno vlan1411no int vl1411no spanning-tree vlan 1411 priorityconf tIn...

Hello,We have a couple of linux servers that we want to interconnect using switches. We need 3 VLANs of which only the production VLAN needs redundancy and load balancing. And it should easily be expandable with more servers.Our proposed setup contai...

I am trying to bind two 10 GigE interfaces through a port-channel to my upstream router. It seems that the link keep flapping. Has anyone seen or know what maybe the reason for it happening?Thanks

Hello everyone,I would like to implement the following scenario: a customer gets an me3400-2cs as cpe and connects to an me3400me-12s (provider) using 2 links (one copper one fiber). The links will be configured with flexlink to fall back to the copp...

unable to telnet to 4948 switch from a routed network

What are the best options to:1. Connect two different VTP domains on two diferent sites (campus)to access site to network from site 1. Media is FE p2p.2. Or using single VTP domain is better option.I have 4507 on both sides

Hi,I have one question about VSS.I'm configuring VSS with two 6500 chassis, both have one sup. I don't have 10G module, so there is only one connection (two cables in etherchannel).So, I'm testing VSS redundancy, and I pull out these cables. There is...

I inserted the HWIC-1FE card in the slot1 of router 1841, but I can't configure this module. Router identificate HWIC-1FE like NVIO. Which commands can help router to indicate HWIC-1FE as FastEthernet0/1/0?

I would like to upload the configuration file from my pc to my router using the 857W console port and a suitable terminal emulation program that supports XModem (or similar).1. Does my router support XModem and can it be used for uploading / download...