Switching

I need help in determining why we are getting AuthenticationFailure messages on our ASA's and 1841 roouters. Out of the blue this morning we received alerts on our ASA's then about 30 minutes later they started on our 1841's. We are using OpManager f...

Hi,Could some one help me on this, I am not able to assign the vlan for the range of interfaces.Cat4500(config)#int range fastEthernet 1/1-10Cat4500(config-if-range)#switchport access vlan 10%ERROR: Standby doesn't support this command% Command faile...

Hi,Since its possible that only one or few or all of the per-VLAN STP instances may detect a topology change,So does the fast ageing of entries on account of such a topology change, take effect only for the MAC entries learned on those particular VLA...

Hello,We suddenly started getting a rash of alerts from our monitoring tool (OpManager) today and can't figure out why we are getting them. We were getting alerts for our ASA5500's first then it was showing up on some of our 1841 routers. We are gett...

my core is 2 6500 cat OS 8.6.1 Im  just starting VOIP I not able to set aux 3/1 vlan 107 on a trunk I can set it on a non trunk port.will my 802.1q  cary traffice over the trunk Voice and data vlans. my IDF are cat 3560 ios I have no problems switchp...

All,I'm trying to do a basic config for multicast.  I'm configuring this on a Catalyst 4507.  I'm going with a shared tree, sparse-dense on the vlan interfaces, and configuring a single static RP.  There will be other layer 3 switches involved at som...

Hi All,  Am trying to find a way,where only some members of the port-channel would be used until the load increase the active member capacity .If this is not possible,Also exploring a way to keep some member active and only other members become activ...

Hi,I have an a switch 3560 with IOS c3560-ipbase-mz.122-35 where from port fa 0/1 until port fa 0/22 thera are connected22 AP Cisco 1242.On this ports I have configured only "switchport access vlan 3", which is vlan for wi-fi.Yesterday, for each of t...

Hi,Currently I've got a static source nat setup i.eip nat inside source static 10.4.81.32 10.1.51.125This ip 10.1.51.125/29 is an hsrp address.what I'd like to do is create a nat rule that will convert all 10.4.x.x addresses to the hsrp address and t...

why eigrp routes are preferred over RIP2 ,what is workaround to make RIP 2 routes /24 prefer over eigrp /32 route, do anyone has any suggestion, please send us.thank youPlease let us know if its possible.ThanksSanjeev

Hello,While I was connected Cisco 3560 PoE 8  Switch,There is a warning   shown as "faulty internal power supply detected" what does indicate us?Thanks.

When try try to run CCP 2.1 a got the following error: org.hibernate.exception.GenericJDBCException : Cannot open connectionCCP 2.0 worked fine.I am using Windows XP SP3.¿Any ideas?

HiAs i seen i ciso documentation regaring etherchannel in 6148 Line card limited to 1 Gig ASCIOne more query if I configure ether channel with 2 6148 Linecard for example CAT 1                                                     CAT 2 Module 3 Port 1...