Switching

Hello. I have a Catalyst 3750, that I am configuring. I've enabled AAA new-model and configured an aaa authentication group for logging on to the Console and SSH. When I log on to either (SSH or the Console), I've noticed that though the switch promp...

Hello, Configured GNS with two routers connected back to back with Gig interface.Want to know how does they (ospf) detect this duplicate address.Run some debug but both routers send hello and stay silent. R1-10.10.10.1-----10.10.10.1--R2 R1 router-id...

we have a new building, and I told the cable company run OM3 cable from second floor to 1st FL data closet because we have 4510R SupV-10G at each floor.However, the cable company ran a regular fiber cable instead of OM3 mistakenly. My questions, can...

Hi all,i thought that OM3 is a multimode standard, recently a cable guy told me that they have laid OM3 single mode, i asked him that OM3 is a multimode standard but he said no, single mode also comes in OM3 as well,is that true ? ?

Good Day!Please help me to answer this question in my title. I have 2 switches my old switch has configure ip address and i will use stack to my another switch the old one will be the primary and new switch is the secondary do i need to configure the...

Hi All,my 887 seems to crash for some reason every night. The CD, Data, and port 3,4 leds are not on and the router doesn't respond to pings from the inside network.  After a reboot everything runs fine. Doe anyone have an idea whats going on? The de...

Hello,We have Cisco 6509 Core Switch with following details & we need to install WS-X6716-10T-3C module in int.Can some body advise which slot number i should use in 6509 ?Do i need to upgrade supervisor engine IOS for this ?Is it hot swapable module...

Hi all,just a quick questionassume i have two pcs , pc1 & pc2 connected to switchAand switch A go to switch B by trunk.there is pc3 on switch B. topology as below : pc1 ,pc2-----SWA--------SWB-----pc3 the question is.if i want to allow only pc1 & pc2...

Our main internet router has two firewall's at our site, one of the asa's is ours the other is a client asa, the client asa has a ipsec tunnel and a riverbed steelhead caching device that goes back to there site in the usa. this is then used by the c...

We recently moved to a new physical office, and I was in charge of spec'ing out and ordering networking gear. Everything is brand new, from the wires to the switches to the Comcast modem (though that is also Cisco branded as well). We went with the S...

Greetings network wizards, I'm facing an interesting issue in our enterprise network.There is management VLAN. There are various devices in management VLAN (e.g. WLC controllers, SVIs for management on our catalysts, interfaces for management of serv...

Hello All,I have a question of the 2 core switch with 2 firewall connection. The 2 firewall is the cluster and both core switch has static default route to point to the firewall vrrp ip. My question is how to create the redundancy design for such con...