I have a 3550 switch connection to two 7500 routers via the gigabit ether ports on the 3550. I have a whole bunch of servers on different subnets connected to 2900 switches which are plugged into the 3550 in a star pattern. Currently I just have IPs out of each subnet bound to the 7500 router's gig ports that the servers use as default gateways.
Any suggestions on what would be the best way to configure the 3550? I don't currently have any VLANs set up and the 3550 is running in layer 2 mode although it has layer 3 capabilities. Should I enable routing between the 3500 and the 7500s?
If the 3500's let you, i would config the 7500s for trunking, then VLAN the different subnets that you have and run HSRP between the 7500's ? let the 3550 switch, let the 7500's route ? I haven't played with the 3550 yet.
Yes the 7500s routing and the 3550 switching was the scenario I first considered. Bu since the 3550 has the EMI package, it can do routing as well. So I thought of using the 3550 to route between VLANs and the 7500s, but I was unsure of the best way to set up the 3550 for routing and what the performance benefit would be.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...