Other Network Architecture Subjects

We have an IP cloud (wireless broadband). We need to use this cloud to transport Frame Relay and X.25. I see Cisco supports X.25 over IP (XOT).Is there something similar for F.R.? example: I have a FR switch in one location and a FR host in another l...

We have an ospf network with 3 areas configured and we get this error message on the area border router of Area 2%OSPF-4-ERRRCV: Received invalid packet: mismatch area ID, from backbone area must be virtual-link but not found from 192.168.4.1, Ethern...

I am having some extreme difficulties with my wireless service provided by Shockware (www.shockware.com). I am getting a massive amount of re-transmission and packet loss. How can i fix that?

i have a problem : i have a internet link from an ISP with 3 bits mask and first two octets are(195.133.xxx.xxx) when i get second internet link from a differrent isp with 4 bits mask and first two octets are 195.214.xxx.xxx , and my all equipments h...

I have replaced 3com switches with a Cisco 4000 switch. This is an AVVID implementation so I have the Auxilery power supplies. This problem did not exist when the network was on the 3com switches. Windows 98 systems when booting do not get their DHC...

Will the router send an SNMPtrap if a high temp threshold is reached

The GigE ports that will be used for Trunks to other closets I have set as "Switchport trunk encapsulation is dot1q". Will this automatically allow all subsequent VLANs I create to be trunked over that Link?

I'm a bit confused about the CGMP join mechanism. When a host wants to join a group, it firstly sends IGMP report message to the router. Then the switch will record the MAC of this host to its CAM table. Then the router will send a CGMP join messa...

When using snmp to read the ospfspfruns MIB, at what point does the counter roll over. I think this is a 32 bit counter but may be mistaken

I am currently programming two c2611 routers. I have both routers configured and in place. I have a computer hooked off of a Fast Ethernet Switch on the Remote side with a IP address of 172.18.1.10. I am able to ping the IP of the computer all day lo...

New security policy is calling for a long winded message to be displayedIOS 12.2.8 on all routers, CatOS 7.2.1 on switchesThanks

Hi,We use a uBR7223 with IOS v 12.1(11b) here. In order to test the new cable monitor command we connected a linux system running snort to the fastethernet port and issued the commands as per http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_...

Hello,i have the following problem:i want to connect our cisco router with a MS-Client.Below you can see that the router should make a callback.If i dial the router, the connection goes up without callback andi don´t get any error messages.Cisco Inte...

I have some questions about V.8 Recommendation.I monitor the progress of the modems connect. I can get demodulated data andsignals from the line, and I try to get signals and data from hardwaremodem(USRobotics Courier V.Everthing) according Recommend...