Other Network Architecture Subjects

Let me start by saying that I am a novice when it comes to switches and VLAN configuration.I have two Cisco Catalyst 3548-XL switches running my network. Connected to one of the ports on one of the switches is my firewall. I need to segment my netw...

Hello,I have a NM-4B-U on my router, and the ISDN line which comes from the service provider is a 1 Pair, and i have a RJ-45 connector on my router,how do i convert the RJ-11 to a RJ-45 ?Can somebody help me with the Pin Configuration ?Mahe

Hi,I just started as a network engeneer, and now I already have a problem that I cannot solve... Can anybody help me with the following : We have 2 cisco routers (1600 series) and we need to switch the 128k leased line tot a 516k leased line ; this d...

Hi,Just wondering if someone knows which router will do an ISP failover. I do not want internal clients on the network to notice if one of their ISP's goes down ... ideally I would like a router to failover to a second interface ... the catch is tha...

What is the smallest (the cheapest) catalyst that support layer 3 swithcing?

I want limitted bandwith for asyn line on 3640 routerwith NM16AM, so I use bandwith command in group-async.for example set 5k for bandwith in group async 1-3.What is your idea???

I am see packets that should be fully switch that are going to every port on my network! After sniffing, the packets have source/destination MAC addresses and are even in the same subnet, yet the packets are going everywhere, bringing my network to ...

We are using in our company a 3Com Superstack router in order to access our ISP. The core is provided with a Cisco 3640 router. These two routers are directly connected.The Internet traffic goes well for about 2 or 3 hours. After that, we have a poor...

Hello all,I have a question about NAT'ing w/ route-maps. Will they work with standard access-lists? or do they have to be extended access-lists? I have tried standard access-lists and they don't seem to work, so I was wondering if they needed to be e...

Hi,Any idea of how we configure per vc (hierarchical) traffic shaping on a BXM-155 UNI port?Which software/firmware version supports it?Thanks in advance,Kostas

On a C2950-T switch we have a single VLAN (1).There are several multicast sources on this switch. When i enable the IGMP snooping option global and in VLAN 1 the multicast flood to all ports... So the snooping doesnt seem to work. After conncting an ...

I have a catalyst 3524-XL-EN,in those days I can't use the f0/6 port,I shutdown the swith and restart it,and in the cold start it show's the messages:Press RETURN to get started!C3500XL INIT: Complete00:00:22: %SYS-5-CONFIG: Configured from NVRAM by ...

I am new to this but am trying to learn. Where can I start and learn about MRTG & network management? I am trying out a Solarwinds Network Management Software because I don't know Linux. And I guess that rules out MRTG, right? What is a community st...

we have cisco catalyst 2900xl switch in which i connected my customers. i want to restrict my LAN clients so that they can use some restricted bandwidth (ex: 32kbps/64kbps etc). pl. some one help me in this regard.srinivas

I have a 6509 with 2 x MSFC2 cards installed. We had a power outage and the following happend:The Cat6509 did not start properly, the 1st PFC2-MSFC2 module was in fault and the second one was okay. When logging onto the console port The 1st PFC2-MSFC...