Hi guys,Iam having an issue regarding 3750 stack.Suddenly the switch start to initiate error msg and some traceback.Allso some ports suddenly stop working and dont forward traffic alltought i can see interface is UP/UP and negotiate to 1000 Gpbs.here...
Hi, I am fighting with problem isolating Vlans. It is 876 router and the idea is one connection to internet using Router ADSL WAN with Vlans I add Vlan2 to FE1 and Dynamic nat, DHCP for VLAN2 only and it works but I cant make ACL to isolate VLAN1 fr...
Hi Guys, I am configuring 2x 3560's to work with VmWare. in gig0/1 i have vmnic0/vmnic1 (service console) on both switches, now normally i would have them on a port-channel but when doing it over two 3560's im not sure the best way to do this? We hav...
HiI have a big problem with Vlan flapping, this is my topologySwitch 1 and Switch 2 have the SVI and HSRP configured. Switch 1 is the root bridge for all Vlans. The message vlan X is flapping between port Gi1/0/2 and port Po2 appears on Switch 3. The...
Hi everybody,I would appreciate your kind help in a problem that we have:Our setup(My mobile)----(Telecom Provider) ------GRE tunnel---------<Serial0>-(Cisco 1941)-<Giga0/0 192.168.1.28>-------------<192.168.1.10 ethernet>-(Router)-<Serial 10.20.30.5...
Dear All,please help with the proper configuration that i should use to configure port security on cisco 2960 switch with the below setup i saw two types of setup and i don`t know which one is correct or even better1- interface Giga...
Hi all,I am currently working on a project to implement a second nexus 5548UP for a backup/redundant configuration with a 5548P that is already in production. I've been scouring the documents on VPC design and implementation and config-sync usage an...
Hi,does anyone know if there's a way for password recovery on 3560X without pressing "mode button"?A way, for example, to reach ROMMON with some escape sequence as in routers?I have SWITCHES with CISCO 3560X boards embedded and they don't have the "m...
Hi.I've set up a simple 3 router network In PT with EIGRP (auto-summary enabled).All three routers are In the 10.0.0.0 classful network. The thing I don't understand Is , even though the sh ip route gives two routes for the 10.0.0.0 network on each ...
All,in a network with multiple subnets is there any configuration on Cisco switches needed to allow multicast traffic to traverse all the different subnets? All switches involved are 3750 v2s.Thanks in advance! All replies rated.
Hi,I have this card installed onmy 3845 running version 12.4(18). But this card fails to show up.here is what I found in a show tech.any ideas?WIC Slot 0: Unknown WAN daughter card WIC module not supported/disabled in this slot Hardware Revision ...
I have a layer 3 switch, 3550.I have several vlans on there just for playing around with. One of the vlans, has a vonage linksys box attached to it with a UK number attached. From time to time telemarketers call at 03:00 in the morning, this as I'm s...
