Switching

Two part question regarding Private Vlanning, of which I could probably find out much of this in the lab on my own but thought I'd seek input here first from those of you with greater familiarity on the topic.If you have a single isolated private-vla...

Hi, I’m somewhat new to Cisco routers this is my first attempt at getting one to work. I work in an environment with multiple locations, most are using the Cisco Model: 2911/K9 or the Model: 2921/K9 routers running IOS Version 15.0. We just added a n...

Hi In the above diagram , If if access device are  dual homed to both N7k`s vPC domain( Primary & Secondary).in this secenario, for example if the server connected to access switch( below ) needs to communicate the destination server  which is behind...

HelloI have a pair of 6509-E in non-VSS with a etherchannel trunk between them.  I have say a user VLAN and a server VLAN on there and SVIs configured with HSRP so active router is on one 6509-E with the other as standby.  I am in a situation now tha...

I have a cisco 2921. I have 2 networks that has its own router192.168.1.0 network is connected to watchguard firewall192.168.9.0 network is connected to the cisco 2921 router.I want to connect the 2 subnet using one of the interface of the cisco rout...

Hello, I'm having difficulty upgrading to 15.0.1SE2 from 15.0.1SE.   I have about 50 switches in the network and a majority are on 15.0.1SE, others were on 12.2.55 I believe. The switches on 12 upgraded to 15.0.1 SE2 without issues using CNA. When I ...

Hello All,I have an issue on the Cat 3750 on the voice vlan; IP Phone not registering with PBX & Signaling Server.  The ip phone hits dhcp and gets an ip addressfrom a data scope. Data scope does have dhcp options for voice, same as voice scope so it...

I use VS-S2T-10G and i would like to use VSS. I am thinking that i will use management port to do Fast-Hello for VSS dual active detection. Can it work ?

Hello,I am not able to ping gateway's on my firewall from 1 subnet to another. What can be the issue ?Some details abotu existing network as follows :-ASA0 Config:-  VLAN config done as vlan1, vlan2  on ASA , acl etc done, nating is done  >> 3COM L3 ...

Hello,I have a kind of small but complex network.Recently I realized their is routing problem which not diverting HTTP traffic to the right leased line.Problem : HTTP/HTTPS traffic not going through leased line which is only for HTTP/HTTPS trafficGoa...

Has anyone used the new SFP-H10GB-CU2-5M cables yet? I tried my first set yesterday and my switches aren't recognizing them. They aren't listed in the compatibility matrix yet but I would have hoped that's just documentation catching up with shipping...

Hi AllI have One switch 3750 and many switch 2960 cI use one ASA 5510 to reach emote branche site (vpn conexion)I use one router 1841 for internet conexionRouter 1841, ASA and catalyst 2960 are connected on the 3750Default gateway of all user is ASA ...

Hey all,Maybe not so much a Cisco question but hopefully you will help me none-the-less.We have a couple of Cisco switches and connected a (Windows 7) laptop to one of them and it gets its IP address from a DHCP server.I can now ping the IP from all ...

I have a customer who recently replaced their (2) Cisco 2600 routers configured in an HSRP with (2) ISP links in an ethernet hand off Active/Standby with (2) Cisco 3750 stacked  switches.Interface vlan 2201ip address 208.68.38.113 28interface gigabit...