Other Network Architecture Subjects

Hello to all,After reading several RFCs, guides and HOWTOs I am confused by an apparently trivial question - what is the basic, fundamental difference between classful and classless routing?I am well aware that - said in a very primitive way - the cl...

We have just upgraded two Cat6509 switches to the enhanced chassis and from Sup2 to Sup720-3B.We are using hybrid mode. CatOS version is 8-5-1 and IOS is 12.2(18)SXF.The switch has multiple Vlans, most of which have corresponding layer 3 interfaces o...

On a 3550 (IOS 12.1(13)EA1a)switch. I have vlan 1,102,103 and 104. Layer 3 is enabled. I have created a mac access list LOCALMACHINES with about 20 mac addresses.I created a vlan access map LOCALACCESS with the following entries :match mac address LO...

Please,may someone explain what are the "System FCS error frames" I see with "show controllers ethernet-controller" on some ports of a Catalyst (on trunk and also on access ports) WS-C3750G-24TS-S (3 switches in stackwyse)?Error counters advance slow...

I have a few 2948Gs and a 3560 multilayer switch. I have the VLANs on a 2948, which points to the 3560 as its default gateway. I have connection throughout, I'm able to ping the DHCP server from the any switch, however the ip helper-address command...

I have 2 vlans(Vlan1 & Vlan305) on 6509 on vlan1 i have my dhcp server and i am trying my vlan305 network computers to get ip address from my server which is in vlan1 i configuried the following on my 6509 on my msfc ip dhcp server 10.x.x.201on vla...

1CC1#sh cdp neighborsCapability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - RepeaterDevice ID Local Intrfce Holdtme Capability Platform Port ID1CC1 Fas 3/3 ...

Hi,I would like to know if i can use the 3750 as a transmitter only (Tx up & Rx down).If yes, how can i do ?Thanks

Hi allCan anyone tell me how this works, we have a isa server which allows port 8000 through to the internet, my question is how does the pix know this is used for http access, is there some kind of translation set up ?thanksCarl

Hi,Where is the best place to connect a customer provided router to a network that has an existing 2821 V3PN bundle (CISCO2821-V3PN/K9)? 2821 is the only device infront of Internet.The network (branch office) and the customer's network will be connec...

Hi, I am facing a problem in static nat. I am having a 1760 router with 12.3(6) version of ios. i have configured a static nat using the commandIp nat inside source static x.x.x b.b.b.bAll of a sudden the nat was not happening. i have enabled the deb...

Hi Sir,My customer has two Cat 4006 chassis and are operating in good conditions. Since Cat 4006 has reached its EOS, my customer would like to know any Cat 4500 modules can be used to fit into the exsting Cat 4006 chassis. He is plannig to have WS-X...

I have upgraded my switch network to include 2948GE, 3750 and 3550 switch.I have a Novell network, since I switch the users to the new switches which need to go over trunked port to reach the Novell server, I'm experiencing some of the workstation no...

Currently I have a 7200 Series Router configured in a point to point connection with my ISP's Juniper router. I have another 7200 router with the same config turned off waiting in case the primary fails. I would like to make use of the offline router...

I was playing with the idea of upgrading the ios on my new catalyst 3560 switch..i dont know what i did wrong but now i cant save any change to the running configuration. When i say copy run start it gives me:startup config-file open fail(not enough ...