Switching

I have a cisco WS-C6509-E with VS-S720-10G (12.2(33)SXI1) and i'm seeing something weird when i do a "show etherchannel summary" commandI am seeing additional port-channels which I have not created.For example i'm seeing: 699 Po699(SD) - ...

HP3020 Swich won't Join VTP domain using dotq trunk. I am trying to connect a Blade system to the 6509 and using 4port ether channnel using LACP protocol. Redundant system so tried connecting the one switch and it works fine using the same configurat...

I'm putting a 2 port channel in on a 4506 running 12.2(25). It's connecting to an ESX server. Can I get a sanity check on these configs?interface Port-channel1description Channel to ESX1 ports 3/42 & 3/38switchportswitchport trunk encapsulation dot1q...

I've noticed a spike in the reoccuring problem of the network forgettingthe location of virtual machines within the Xen infrastructure. My VMWare Adminhas also seen this occur many times with VMware virtual machines, whichleads me to believe its not ...

Hi allam i right in saying this is enabled on GE fiber ports by default and switched off on copper ports by default?should I only enable this on my L3 links between my switces ? and leave it off everywhere else ?

HI,We are using two CAT 6506 in our network and planned to deploy the Redunancy between this two CAT and configured and HSRP for example :In Primary CATVLAN 101interface vlan 101IP address 10.101.1.2 255.255.255.0Standby 1 IP 10.101.1.1standby 1 prio...

Hello,We just discovered a weird problem on our network. We have a /19 cut down in several .248 and .240Now we connect to a provider, he puts in our routes in the BGP and assigns it to our port.On our side we have a ip route 0.0.0.0 0.0.0.0 xxx.xxx.x...

Hi,Should one look at upgrade to IOS if they are on CatOS or is CatOS still a standard ?ThanksEd

Dear all, DAI combined with DHCP snooping binding table secures against man in the middle by blocking ARP requests not in binding table.I am using DAI in combination with PVLANs, however arp entries do not flush even after the configured arp time out...

What are the connectivity issues regarding interconnecting OBM port ("fa0" port on back of switch) to a switchport on the same switch. (1) Need to manage several switches via OBM (fa0) ports(2) Need to firewall the mgmt VLAN. DG on FW. (3) For switc...

I am having a little issue with RSpan, well actually I am having a little issue with me. Specifically my lack of understanding. I have read several How to's and am pretty sure I am more confused than when I started.Here is what I am trying to do. I w...

Hi all, is it true that by converting my isp's core network from atm to mpls they will save 12% overhead ?

Hello, I have several 2960 switches that are all running 12.2(35)SE5.I know that 12.2(50)SE1 is out there, and I am curious when it is best to upgrade the software version? If my switch is still PRE-production, am I better off to always upgrade to t...