Other Network Architecture Subjects

Hi,I have a PBX at each of my site trunked to form VoIP traffic.Scenario-PBX---6500 --(gig trunk)--6500---PBX.The trunk carries data traffic in addition to this voice traffic. What should my qos configuration be to provide priority to voice traffic b...

My company network encountered a STP flooding and the network hunged up. After we reset the core switch, the network was resumend normal. But, we found some of the access switches which had both trunk links connected to the both core switches couldn'...

We have a very strange problem on a Catalyst 3750 Stack. The packets on 1 particular port seem to be getting forwarded on to all the other ports on the stack. It only seems to be 1 port which as this problem. The device connected to this port seems t...

Can anyone give me a reason why we might be seeing giant errors on an 10Gig 802.1q trunk link on a cat 6509 with a sup 720. We areonly seeing these errors on the 10Gig gbic trunks.

Hi,I need some advice on how to configure corerctly the ff devices. I have two building and it is connected thru Laser bit wireless network. I have two router, 1 on each location. Also 1 DHCP server and each building. The laserbit wireless connection...

How do I remove a Vlan from a 6509 switchport.I have now set vlan 206 2/4. I want to turn up trunking on this port.

Hi all!I'm recently experiencing a problem with the ethernet interfaces of a Cisco 7206VR router. The ethernet interfaces hangs up. To refresh it I execute shut and no shut commands to reset the interfaces.I have already check the cabling, speed, du...

Dear All,I have problem dynamic vlan on the 4908G-L3. Pls support in this case.thanks

We saw this message on a Supervisor 720 MSFC3 when a connected switch was experiencing problems. The message guide is not clear as to what this really means. Ideas?

I have a pair of 3750 switches stacked together with a single stack cable. When they lose power, and boot back up they are unable to see each other and both come up as master, seeing the other as provisioned but all stack ports are down. I can then b...

The 3548 is a layer-2 switch. I'm wondering if I could block certain ports on this switch from getting an address from a DHCP server. This is for an unsecured building and currently we are using static not DHCP but I'm trying to find a better way. Th...

dear sirswe have two vlans on our lan network and we did notpermit the traffic between them( no trunk or capsulation and the second vlan network id did not applied for router table)i need to mirror the traffic between two ports on the switch 5505 one...

The 3548 is a layer-2 switch. I'm wondering if I could block certain ports on this switch from getting an address from a DHCP server. This is for an unsecured building and currently we are using static not DHCP but I'm trying to find a better way. Th...

I have two Catalyst 4506 switches;version 12.1(23)E1.Current network setting is bellow; l3swSever< || >l2sw--l3sw(extreme) l3sweach Layer3 switches connected to gigabit channel link and vlan trunking vlan11,905.vlan 905 is Server segment co...