Other Network Architecture Subjects

I have experienced problems when upgrading 3550's from IOS Release 12.1(19)EA1 to IOS Release 12.1(20)EA1. The problem appears when connecting, disconnecting or booting any device connected to the switch by using a FastEthernet interface. When I do t...

iam having here a 3550-12t. Trying to configure the management part. I created 2 vlans for the user (vlan 10, vlan 20) and a vlan for the management (vlan 100).ive put an ip address for the vlan management but why i cant ping it even from the switch ...

I am getting output drops on a T1 line, we have occasional spikes in the data rate, now this when we get those output drops, now we need all this data, so would the answer be to add a t1 and do mlppp or can we increase the memory to take care of this...

Hello,I've got 8 c3550 connected via GBIC1000T interfaces to a ring. There are about 30 Vlans. At one moment (after restarted two switches, no software was changed) UDLD have started to disable ports (the trunk ports to other switches in the ring) on...

Could someone explain me when is better use static route and when BGP routing. Anyway, Im little bit confused about how to connect networks together and to ISP.I know that obviously when someone wants to connecthis network to Internet , he asks ISP t...

Looking for sample configs /info on connecting private network (192.168..) to corp network w/ 3550. Both must communicate w/ each other. Thanks in advance.

Yet again I am beating my head against the wall with a NAT problem and virtually no useful toubleshooting tools. This is a somewhat convoluted scenario:One inside interface doing NAT and policy routingTwo outside interfaces to different ISPs, both d...

Pls friends tell me that what is Cisco Works. What are its benefits. ANd from where can i download it.

We are looking at installing a VOIP solution using 3750 Powered switches and 7940 phones. I have read that on a 48 port switch it supports 24 ports at 15.4w and 48 ports at 7.7w. Does this limit me to 24 7940 phones per 48 port switch? If not,how man...

Hello.I have successfully configured VLANS between my 3620 router and 2912 switch. However, ever since I have done so, I can no longer use VPN on the PC's in either VLAN.I have tried adding a helper IP address of the VPN server I am trying to reach ...

I have a 3660 router with a 1DSU-T1 V2 card - I have tried several s/w versions and the 3660 does not recognize the card... Does this platform support this card?

I have a 2620 router that is resetting serial 0/0 frequently. Any suggesstions as to what I need to check to prevent this from happening? I read where this can happen if loopback is enabled, but loopback is disabled on my router. Any help would be...

"BRI also provides for framing control and other overhead, bringing its total bit rate to 192 kbps. "-- Cisco Internetworking Technology Handbookhttp://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/isdn.htmI'm confused by the statement above. Is...

I keep getting the following messages on all of my routers... is this normal or do I need to fix something?May 22 14:34:08: %NTP-4-UNSYNC: NTP sync is lostMay 22 14:35:12: %NTP-5-PEERSYNC: NTP synced to peer 10.1.1.101May 22 14:35:12: %NTP-6-PEERREAC...

Hi Can you tell me why after I did commandcopy run start to save running config to startup config, I turn off power and turn back on power router, it asks me again re-config initial setup again.it does not use startup config file ?do you know my prob...