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hi there,I just wondered if there is an Cisco equivalent to the Force 10 VLT protocol to allow switches to simultaneously uplink to different cores. I can see there is a virtual port channel protocal for Nexus switches but don't think it is available...
Hi there,We currently have a number of 2960S (12.2.55) access switches that connect to Dell N3000 series distribution switches.We have found a problem with spanning tree shutting down ports and the switches going offline. This happens intermittantly ...
hi there,I was hoping with some advice, we are looking to upgrade the switching and wireless infrastructure in one of our factories. The current setup is:-Core: 2x Cisco 4506 chassisDistribution: 8x Cisco 3560 PoE switches linked via OM2At present WA...
hi All, I've 2 Q's I'd like some help withWe have bought some Cisco WS-C2960X-48FPD-L switches – do they do Layer 3 routing out of the box?Assuming the answer to the above is no, can we do a software update to the above or have we bought the wrong ki...
Thanks again for the excellent response. I think we are going to disable the misconfig guard as its the simplest solution.Just to be clear is the command to disable the etherchannel misconfig guard:-no spanning-tree etherchannel guard misconfigFrom w...
Hi Peter,below is the output for the commands you asked I runDellDellDist1#show spanning-tree vlan 1Neither PVST nor Rapid-PVST is enabledDellDist1#show spanning-tree vlan 1681Neither PVST nor Rapid-PVST is enabled CiscoC2960S#show spanning-tree root...
Hi Peter,I've just run a show cdp neigh command on the cisco access switch and can confirm that the LAGs are correct (there are 2 LAGs each going to a single switch).The core, distribution and access switches all seem to have spanning tree in rstp mo...
Hi Peter,Having read your response again it sounds like the issue would just be due to the etherchannel configuration on the dell n3000. From a Dell document on interoperability ...(http://en.community.dell.com/techcenter/networking/m/networking_file...
Hi Peter,Thanks for your response - that explains it very clearly.We are currently using 2x Dell S600s as our core. These are configured with VLT so they appear as one logical switch. Could this be the reason behind this?I have attached a diagram sho...
