Other Network Architecture Subjects

I would like to know if someone knows how to addcomments in an "active" router configuration.I know I can edit a configuration in a editor andcustomize it to my liking, and then upload it to the router. Specifically what I would like to do is ... ad...

WE ARE CURRENTLY IMPLEMENTING A COMPANY-WIDE OPTICAL FIBER NETWORK WITH CATALYST 6009 AS THE HEART OF THE SYSTEM. WE HAVE SIMULATED THE NETWORK OVER LINUX PLATFORM WITH A DHCP SERVER ALLOCATING IPs IN VARIOUS SUBNETS. THE SIMULATION HAS BEEN A PERFEC...

I have a Cat. 5509 on my live network which I am unable to ping, telnet, nor connect to via the console port. However, all user connections on the switch are functional. CPU utilization is next to 0. What is the problem?

I have to hook up building A(offsite)to buiding B(onsite 2.4 mi)using singlemode 1550.And then from building B to building C.(approx 1/8th mi).converting to multimode.I guess my question is would I need a switch in building C to support multi platfor...

Hello,I am configuring a Catalyst 4006 Layer 3 Services Engine. Routing between the VLANs is working fine.I am able to apply ACLs to the internal gigabit sub-interfaces however they are not matching traffic as I would expect.For example;access-list ...

Could anybody know if an ABR might be also ASBR, and what happened with external routes if ABR has summary routes configuration for his area ? Could be present dual summarization as ABR and ASBR ?Thanks

Is there a way to get redundat inbound internet access to our email system without running BGP. We currently have a T/1 to an ISP. In the event that this ISP fails would there be a way to access out email system via the internet without adding a seco...

I am new to cisco routers so please excuse the simple questions. I have managed to set up point to point from our corporate office to our colocation. We have a 2621 route at the colo and a 2501 router at our corp via a T1. It seems to me that the con...

Will the CAT4006 support dual supervisor cards for redundancy?

Hello,One of our customer has 2611 ( Dual LAN) Router which is configured for one ISP through Leased Line Modem. Now they are going for Microwave as Backup which has Only ethernet Port. Can we use Cisco 2611 Router second port for this microwave lin...

I have a headquarters and 4 branches, we need a router on the headquarters, we apply 4E1s from CO, and give 1E1 to each branche,so the router should has 4E1 in along together, and 4E1 out separatly,so who can suggest this kind of router for my headqu...

On extended access-list statements, what is considered the source address and what is considered the destination address? For instance, is the source coming from the WAN interface or the Ethernet interface?

I need some advice with VTP domains:I have two remotes sites with Cisco Catalyst 3524XL switches. SiteA has 3 switches and SiteB has 2 switches. Each Site is it's own VTP domain, and seperate subnet. Someone will move 1 switch (VTP Client) from Si...

Hi,I am using an AS5300 for authentication for a small ISP. I have two T1's for connection and 48 modems. When I try to do a multilink ppp connection with ISDN my authentication fails, but if I change it to use only a single line the authentication w...

In a two-router network, separated by a T1 point to point on S0 of each router, there are a few IP devices/hosts off each E0 at each end but more importantly, a mission-critical async serial device on an async port at each router. We must ensure the ...