You know, 35xx series will be obsolete soon which will be replaced by 2950 series. 2950 does not support ISL trunking. However, my existing network is using ISL. Can ISL and 802.1q co-exist in the same network ? (i think so)
If yes, any extra thing requires to do for Vlan and STP ? (e.g. ISL and 802.1 vlan mapping, etc).
Yes they can, 802.1Q VLANs in the range 1-1000 are automatically mapped to the corresponding ISL VLAN. 802.1Q VLAN numbers greater than 1000 must be mapped to an ISL VLAN in order to be recognized and forwarded by Cisco switches.
802.1Q supports VLAN's from 0 -4096 and ISL only up to 1000, so if you have VLAN's above 1000 on the ISL side you will have to manually map them to 802.1Q
[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...