Switching

Hi.. I have been running a cisco 2921 router where 60Mb internet(ILL) circuit is connected. This circuit is everytime full utilized because folks on Internet access our LAN server and transfer(upload/download) heavy data which cause bandwidth choke a...

Hi Expert I can not pass RSPAN traffic through Nexus 3548 where it is intermediate switch in my network. my sources switch model cat3750 and collector switch is nexus 9508. N3k is in between them but it can not pass my RSPAN traffic. Is there any sol...

Hi Folks, Been looking at this on one of our network switches, it seems that something is scanning the network looking for IP addresses and effectively I have the below for every unused IP. Internet  10.172.84.101           0   Incomplete      ARPAIn...

Currently the Cisco Catalyst 6506 Switch I am configuring is having booting issues (in addition to prior issues), and will  fail to automatically load the IOS after a reload or loss of power. I can specify the boot path and load the IOS in rommon>, t...

Quoted from jeff doyle book TCP/IP vol-1 "on point-to-point networks,updates are sent multicast address AllSPFRouters(224.0.0.5).On point-to-multipoint and virtual link networks,updates are unicasted to the interface addresses  of the adjacent neighb...

Hi all, Scenario:  we have vlan 15 as management vlan, vlan 16 as server vlan. and vlan 201,202,203 as user vlan. we have cisco 3560 catalyst switch. I have created switch vlan interface for vlan 15 as 192.168.15.254 & vlan 16 as 192.168.16.254 .We h...

Hi Team - I have two ws-C4500X-16 chasis, Sw1 & Sw2, all running fine. For some reasons, Sw1 was down since long & Sw2 has taken VSS-Active role. we made several changes on SW2 during this time. Now i would like to bring the SW1 into production, i a...

Hi All, I can't seem to find Cisco documentation that covers IOS upgrade on 4500X without ISSU. ISSU is not an option for me as the version i'm moving to (03.06.05) doesn't appear to support ISSU. Is there an alternative way to upgrade the 4500X in ...

how to replace spanning tree or MLAG with ECMP? if whole infrastructure not use spanning tree and MLAG and change to use ECMP,  which switches support? i see uneqaul cost multiple path support in EIGRP.  isn't ECMP an independent configuration or p...

I am having an issue with excessive punt-rate-limit count.  The count increases on the order of 2000 counts per second, which is causing videos to become useless due to the many UDP packets that are being dropped. I have not found much on this topic,...

I am having issues on a Catalyst 3560 where on L2 switchports, if I have AutoQoS voice cisco-phone implemened globally as well as on an L2 port, but no Cisco phone is present on said port, bandwidth is limited to about 1 MBps (8 Mbps). Ports with Cis...

Hi All, I am learning OSPF and have studied that in point to point network DR/BDR does not form. But In case of fast Ethernet cable DR/BDR election happen and In case of Serial cable it doesn't ? Can somebody explain. It would be a great help.