Other Network Architecture Subjects

4. What is spanning tree (802.1D)? How it is related to switch configuration? What is Root Bridge, Designate Bridge, Back Bridge, BPDU (Bridge Protocol Data Units), port cost, maxage interval, hello interval in Span Tree Protocol (loop avoidance)?1.4

I am upgrading an old network and as I add switches, I would like them to run rapid-pvst, instead of just pvst which is what the older switches are running.Last I checked (with a Cisco techie at Networkers 2006), it was OK to have trunked switches wi...

Hello,We have a 4506 router/switch that we have been running 4 vlans on. I wanted to add anothe vlan, vlan 5 and configure two ports for this vlan. I created the vlan 5 and set these two ports for vlan5 but when I do a sh vlan command, their is no ...

6. Ether Channel is a prefer method in combination with (spanning tree protocol) STP? Always? Is there any scenario that better use only STP without Ether Channel even there is more than one link?

Hi all,Can anybody tell me how to remotely locate the ip address of a machine thru layer 2 and layer 3?Thanks in advance,Stanly Philip

I have been reading the Cisco Security Response Document that details the newly discovered vulnerabilities in VTP. http://www.cisco.com/en/US/customer/products/hw/switches/ps5528/tsd_products_security_response09186a00807335bc.html The workaround f...

Hi i want to set up the following:I want to permit www traffic from an inside network to the internet, but i want to rederect the traffic through an proxy for traffic filtering.I tryed a lott of config's like, nat, route-map's ........ect.Is there an...

HiI have a 3750 with a port configured as an access port in vlan 109. Connected to this port is 3550 switch - all ports is vlan one.On the 3750 I get messages to the effect that a Native VLAN mismatch is detected between the 2 switches. It seems to...

Hello the router im using is the cisco 2500 with ios 12.0(10), I have attempted to use isis routing but the interface command "ip router isis" is not avaiable and when turning routing on via router isis command the sub command does not include the ne...

Multi-Layer Switch or Layer3 switch vs. router; How they are different?1.7

"In LSP, one router in each area is designated as the authoritative source of routing information (called a designated router). Each area router receives updates from the designated router" Why need designated router? How it work? Why can?t it just ...

What happen if we permanently assign MAC address to a switch port using (mac-address-table permanent 1111-1111-1111 e0/5)? Is it gonna limit the port usage to matched mac address to the specific MAC? What is ?Switch1(config)#mac-address-table restric...

I am trying to practice ISIS redistribution, but my image "IP Based" feature set and therefore ISIS is not supported.How can I get "Advanced IP" feature set for my C2610; do I need to pay in order to get the image in which ISIS is supported ?My curre...

Hi,I have two main orivate subnets currently running off one FastEther Iteface on a Cisco 2621 router, with 10.1.1.251 and 10.1.4.251 being primary and secondary gateway respectively.Now, I have got a Cisco router 3825 with two GigiEther0/0 and 0/1 I...

On our network we have a problem with Brother printers (HL-1470N and more types).Since we have Cisco Catalyst Express 500 Gigabit switches with are servers attached the problem is there.It prints garbage when I send "large" print jobs. A PDF of 74 KB...