When a switch sees a frame whose source MAC is already in its CAM table on the same port, will it refresh the timer to 0 secondsOr it will again just store the MAC on the same port again? Paraphrasing my question:If it is refreshing the timer ...
Hi All,Our two datacenters are linked together using OTV.The VMware network environment is managed by the NExus1000VWe have a VMWare streched cluster over the 2 physical datacenters (a part of the VEM in DC1 and a part of the VEM in DC2).We have a pa...
HelloI'm doing Redistribute in GNS3, please download my lab first in attached file.You can see four routers, R1,R2,R3 running OSPF in vlan 10,20,30, can ping each ip address between three routers, then I added R4 and R5 for testing redistribute st...
The 3750X has 160Gbps fabric with 102mppsThe 4948 10G has 132Gbps fabric with 102mppsBoth are non blocking.The 3750X allows me to stack. I hear the 4948 is better for server switches because of buffering/queues. So my question is: Does the 4948 buffe...
Hi,We have an MPLS location in our project where some desktops are generating brodcasts and hence choking the bandwidth of that location.My question is how can i identify which system is generating these and how to block them at Router/Switch level.
Hi, I have a VoIP network between point A and B; in A i have UC560 , 3560 v2 PoE 48, and two Cisco IP phone connected (for now); In B, i have 3560 and two Cisco phones. All equipment are configured and between A and B i have a straight cable from fa0...
Hi, I'm looking for the total number of vPC port members that are allowed while using a F3 (N7K-F312FQ-25) For F1 / F2 this is limited to 16 ports per vPC member. Thanks!Kind regards, Wim
Hi,I am planning to have five Vlans in my network i.e Faculty,Administration,Students,Servers and Management Vlan on Cisco 3750-X Switch.Some of my Access devices are TP-link wireless APs that have no Vlan support.Now if have management Vlan and stud...
we are facing issue with IP phones and they lost connectvity and start upgrading.found some errors on the switch logs,TB-5-TRUST_DEVICE_LOST: cisco-phone no longer detected on port Gi7/2, operational port trust state is now untrusted.Jan 17 15:03:05...
Hi there. Now I've got some strange situation with udld. there are two cisco switches which is ws6500 and one samsung L2 switch. The topology is triangle.c6500---------------c6500 \ / (uplink : trunk mode, allowed vlan 80) ...
Can someone please help me on my quelry: why encapsulation is not required in layer 2 and why it is required on Layer 3.What woud be the imapct of that ?Thanks in advance.
Hello,In this morning, all of company's switch no traffic in around 5mins that checked by Cacti monitor, how can I know those switch status on that time ?Thanks
Hi every bodyCBWFQ uses both custom based ( with a little enhancement i.e we used percentage of interface bandwidth rather than byte counts) and weighted fair queuing using class map and policy mapsHere is my confusion.In Custom based queuing we have...
