Switching

Good day to you allI need a little help on how to configure igmp snooping on a 3560.I have a pure L2 switching network and 2 hosts on the same vlan that want to communicate a protocol between each other using multicast packets.I wanted to configure i...

Documentation says this:"The stack master contains the saved and running configuration files for the switch stack. The configuration files include the system-level settings for the switch stack and the interface-level settings for each stack member. ...

Dear All,After studying the "bandwidth" and "priority" commands, we know that during the "link congestion" situation, the traffic volume which defined in "bandwidth" or "priority" will be preserved for the defined class. However, how does the router ...

I have a couple questions about this router. The one currently in my possesion is assumed to have bad memory. I need a way to test and prove that the memory is not bad. What would be the best way to do this?Is the memory propriatary to Cisco systems?...

Hi,I have a problem where some users are facing general slowness in the network, this is affecting internet, email and some application.I checked these users and I found some packet drops when pinging their machines, also whe I intiate a ping with a ...

I have a brand new 1921 router that I can't login to using cisco/cisco.  Anyone ever see this and know if there's a new password?http://pastebin.com/dKK6jc5zI don't have physical access so I can't reboot it until Monday.  Just wanted to get it workin...

Hello,PC1 sending DCHP Request to DHCP server  on network 192.168.10.10. Layer 3 Distribution Switch (Mulilayer Switch 3) send same broadcast to 192.168.1.10 and on port Fa0/2 to Layer 2 Switch. When Layer 2 device recives that brodcast then Layer 2 ...

sorry to this.....................................................

All,just put a VIC3-2E/M card in a 2821 and it is not showing up when I do a show inventory.  Lights on the card are both amber and stay lit.  Is this unit compatible?      Thanks in advance.Relies rate

Hi Netproi have 2960 switch connected via two uplinks <LINK A  towards CORE-1 and LINK B to CORE-2 , both link are equal , STP Chosen LINK A as primary while LINK B as secondary , how can play with stp and Make LINK B the Primary while LINK A the sec...

Hi - I'm working on a design with two different ISP providers. I'm running BGP with the providers and advertising my company owned address block. AS-prepending on one side. That's working fine. I'm running OSPF in the inside with a Check Point firewa...

Hello,we have a problem with the throughput over etherchannel in LACP with 2 or 4 ports.It is iSCSI traffic (vmware esxi 4.1 U3) is going from 2 separate NICs (ports) to the etherchannel (with 2 or 4 ports) that has a SAN connected (Nexenta).The SAN ...

I ran into problem with design that was prepared for Catalyst 6500, but in the meantime infrastructure got upgraded to Nexus. I have two datacenters connected with 1Gbit line (point-point), both ends of this circuit are N7K. There are few segments (l...

SSH has been enabled on our one and only 4507 switch for several months and working fine. A few weeks ago the switch had to be reloaded and when it was back online I couldn't SSH to it. When I connected via the console and typed "show ip ssh" it came...