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On switches like 6509s, 3750, 3560s, etc can I use the extended VLAN range for private vlans? I don't have the ability to get this right now unfotunately.
Has anyone here run a server farm that is layer 3 only, i.e. that layer it run all the way to the hosts for redundancy (i.e. running OSPF on the host machines). Does this scale? What measures are take to make it scale. I have a situation where we hav...
I have two core switches and 40 aggregation switches running MST, with one instance (0). The two core switches are the secondary and primary root for the MST instance. I have some PVST only switches in the mix with the root set to the same as the MST...
I have a large amount of hosts (~200 per vlan) on a Foundry network that is using Foundry vrrp-extended for providing default gateways for these hosts.I would like to transition to glbp on some 6509s I have instead, but when I transition over to GLBP...
Maybe I'm missing something, but I can't get my VLAN interfaces to show up/up for some reason (they are down/down). I have created a vlan, did a "no shut", then assigned an Ethernet port that is UP/UP to the vlan. Am I missing something? I have tried...
Yes, it matters if you have multiples IPs from different subnets on the same machine, sometimes. It really depends a lot on if you have any asymetric routing, but it doesn't sound like you have that situation.Also, disable redirects and proxy arps on...
Also, you won't see ALL the mac addresses repopulate right after an ARP cache unless you give the routers a reason to contact all of them, so do a ping scan (with nmap or similar) first. The mac-addresses timeout after a few minutes, whereas the ARPs...
You can increase arp per interface (i'm using native mode):config tinterface gig 1/2arp timeout 4000 This would make the arp timeout for that interface 4000 seconds. Not sure about Hybrid mode.Are you doing asymetric routing of any kind, or do you ha...
The arp table does not determine whether it will unicast flood or not. Rather, the CAM will, so do a "show mac- address xxxx.xxxx.xxxx" and see the mac address is in the cable. If you clear the arp cache you should get the router to re-arp for the IP...
So far this hasn't been a problem, but I'm wondering what the best practice would be for adding a new instance and then adding vlans in those instances? There must be an order of performing these tasks that is less disruptive than others. Really what...
