Other Network Architecture Subjects

In many discussions on QoS, it is stated that queuing only takes place when there is congestion. What defines congestion? A packet in the hardware queue? The hardware queue being full? Some minimum number of packets in buffers? Bandwidth treshold lim...

Hi wise experts,We would like to implement a design depicted in the "Diagram A - Connectivity View". We will configure the STP cost for each switch in such a way that the traffic will flow according to "Diagram B - STP View". This is to ensure that a...

I have a cisco 2950 switch and i wanted to configure port mirror on one port fastethernet 0/2 to montior the network traffic. I went through the cisco document and it referred to a command Port mirror <interface>/VLAN and tells to configure on the fa...

Hi AllI've got a 3550-48 EMI switch (running IOS 12.1(20)EA2) that is running at 100% CPU utilization. The VUR_MGR is running at 98% - which is crazy!I have already upgraded all the 3550s on our network to version 12.2(25)SE - which is the latest ver...

How do you configure a management vlan on a 6500 running native IOS? For example, I create a loopback with an IP but when I do a show cdp it shows the IP address of the lowest configured vlan. Is there a way to force the switch to advertise it's loop...

I have configured 3 vlans (vlan1, vlan2, and vlan3) on 2950 switch and also 3 vlans (vlan1, vlan2 and vlan3) on EtherSwitch Network module on 2600 router. The interface fe0/0 and fe0/1 on Cisco 2600 are already being used for other purpose. How do I ...

Hi all,Can I use c2600-advsecurityk9-mz.123-10b.bin IOS Version on 2621 Routers. According to the Cisco IOS Planer it is for 2621XM not 2621.ThanksALI

hi,I have a lab network which I test pre-production designs on.Im generating 100MB of traffic(web,ftp,smtp,snmp) across a MSTP region of 4 Cisco 3550-12G which two internet facing routers interconnect.pinging between each router GigE interface I get ...

Is there a router statement that I can direct our internet carrier to our back up carrier when the primary goes down? Will one router do the job or this has to be done with 2 routers? We have 2 routers right now and it's pointing to the 2nd router if...

I have a catalyst 4507 that I have one monitor session configured. The source is the inside interface of my pix and the destination is the monitor port on my ids device.We are using Websense v5.5 and I would like to use the network agent piece to p...

I'm in the process of simplifying the configurations in our 3560s, I came accross a situation that requires a better understanding of how default parameters are used. Originally we had "spanning-tree portfast" and "spanning-tree bpduguard enable" co...

When configuring RIPv2 and EIGRP, I can enable "Key Chains" that basically allow dynamic password changes on specific dates and times and thus making it more difficult for password cracks while at the same time free up the support folks from having t...

Issue reared it's head when my cust doing file transfer with win2k3 server to XP pc pack 2 client using drag and drop . The two consoles are directly connect to same 3560 switch.Server to copper sfp port running 1000 full client to fast e @ 100 full....

Hi,I need to use a feature similar to PMTUD. I think PMTUD is useful only for TCP traffic, but I need some other feature wich also detect the MTU for a GRE tunnel and that be useful for IP MULTICAST traffic. I need that a multicast source, sending fr...