Other Network Architecture Subjects

We are upgrading UFMU port speeds from 1024 to 2048k ( they are DCE ports directly connected to 7507 routers), they run ok at 1 meg but when we upgrade the IGX UFMU ports to 2meg, one UFMU port is ok, the other end shows CRC errors on dspporstats com...

I am setting up two Catalyst 3550 switches in a lab to test out. The layout is somple: two switches connected together, with a computer on each switch. I am having problems with my access-lists. What I want to do is to deny all traffic on that po...

I lost power and my router rebooted after the UPS ran out of juice. I had it configured and since it reboot it lost all the changes I made. I need desperately to get this up and running ASAP. My problem is that I need to set up the ACLs so that th...

Got a question here that I hope somebody can answer for me. I have the following scenario: I have 3 dns servers. 2 are live and have valid addresses, one is old and is being taken offline. Because of some hassles with Netsol I cannot take the old ser...

We have a problem sometimes with our 35xx switches not passing traffic for a vlan. Our core/distribution layer is a 6509 which is the vtp server for a about 60 vlans. This fibers out to our access layer 35xx switches. Ocassionally, we will power o...

What are my TLS options with a 6500 when not using MPLS? I have an IP routed system and need to offer layer two services across the IP backbone.Thanks,Pat

I'm working with two 6500 switches both having Dual SupII and MSFC cards. The current 6500 is the core of our network and I'd like to add the secondary 6500 at this point but am still a bit unfamiliar with the technologies and practices I will need....

As I understood from a previous conversation, earlier IOS versions supported a daisy chain (stacked) backbone connection, while later versions were to support a hub and spoke (using a 3508 for example) and ring patterns (letting SPAN's portfast netwo...

Please advise on the following:I have OV-NNM 6.1 which is to be updated to 6.2It is then being moved to another server, where it will integrate with CW2000.I also need to retain mapping from NNM.What steps and gotchas must I be aware of Please.

What is the diference between a)frame-relay traffic-rate x x xandb)frame-relay cir, frame-relay bc and frame-relay beIt's the same????J.AThanks

I am trying to design a LRE solution for a multi-tenant buiding. I have followingquestions;1. does CIsco BBSM comes with a server hardware ?2. Can BBSM do RADIUS accounting without having an external RADIUS server ?3. All customers are connected to t...

Is it a good idea to activate Fair Queueing on an ISDN PRI used both for incoming ISDN-calls from users, and for backup-links to remote sites?Both dialin-users and remote sites use ISDN BRI with multilink PPP and DDR.On the NAS with the PRI, I use on...

What is the different MSP of SDH and APS of SONET? How to config the MSP of SDH?

What causes the following link errors on the 2900 and 3500 Cisco switches platforms?" %LINK-4-ERROR: FastEthernet0/1 is experiencing errors" Knowing that:Physical connections have been verified/changed and are fine.Duplex and speed between the Switch...

I have four 6509s fully meshed and redundant. Redundantly attached to the 6509s are 5 Catalyst 4006s, running CatOS 7.1(2). Also attached are two Catalyst 2950s running 12.1(9)EA1. Spanning tree is enabled, and the operating correctly so that there ...