Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
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Forum Posts
in my office, people bring their laptops and connect to the network.Since we have dhcp allocation of ip addresses,an ip is provided to them and once they disconnect, the address is still in an allocated state in the dhcp server. Can anyone tell me ho...
Hello,I having issue where 6 WLAN AP's not coming back uo after reboot and IOS upgrade of 3560 POE swtiches - . Prior to changes here most if not all ALL the 23 Aps were mainly on one switch, Now after these changes they are now spread over three swi...
Me and colleague at work had a discussion about root bridge and SVI. According to him Root bridge of a vlan and its SVI should be on a distribution switch. If SVI is on distribution switch and root bridge defined on access switch, it will be a proble...
Resolved! 3560/3750 QoS "cheat" sheet?
Hi folksI remember not that very long ago I saw a document that was depicting the QoS order of operation for both ingress and egress data flows on the Cisco 3560/3750 series.However, I'm at a loss right now as I cannot find it, apparently I didnt boo...
Dear Team,we are experiencing high CPU utilization in our core 6509 switches intermittently because of high kernel process. Kernel process is going high within every 30 seconds and coming back to normal within 2 seconds. I checked the configuration, ...
Resolved! Nexus emulation? Anyone?
I'm pretty sure the answer is "NO" but is anyone doing any kind of Nexus emulation (legally) for training/learning purposes?Dynamips - NOI.O.U. - NO (I think)Others?If this isn't the right forum please redirect me. Thanks.
Hi Guys.. I need your help regarding cisco switch I want to know that my cisco switch is original one or chinese copy.Kindly share the method for finding it. Regards
I am getting this syslog in Nexus 7 K.2014 Aug 9 03:38:35.956 Campus-N7K1B-User.AGG %ARP-4-SYSLOG_SL_MSG_WARNING: ARP-3-DUP_VADDR_SRC_IP: message repeated 9 times in last 11 sec2014 Aug 9 03:38:37.077 Campus-N7K1B-User.AGG %ARP-3-DUP_VADDR_SRC_IP...
Does anyone here operate their routers & switches without a username specified? We don't use the username in our login or enable authentication (use vty and enable passwords), just wondering if there is some requirement for a username that I don't kn...
I have two 3750x switches stacked together on floor #1, and I need to add a brand new 2960 switch on floor #2, can I do Etherchannel among them to provide redundancy for floor #2 via patch panel. I am thinking to install a patch panel on floor #2 an...
Resolved! Multiple Public IP Routing
our isp had assigned /29 range ip address to us. These ip address are mapped to private ip using nat. We ran out of this public ip and requested our isp to assign new range of public ip, they assigned /29 range we have an web server that host about 1...
Hi,Has anyone used a 100Mbps SFP with this EHWIC module?I want to use a GLC-FE-100EX SFP with this module but there aren't any 100Mbps modules listed in the table of supported SFPs in the following link:http://www.cisco.com/en/US/docs/routers/access/...
Resolved! Overlapping DHCP for HSRP pair
In the event that I have a pair of HSRP routers that also act as DHCP servers, what is the best way to avoid an IP address conflict? I don't want the Active Router to give out an IP, fail and then have the Standby (now the Active) give out the same I...
Hi All, I would like to configure my core switches as the ntp master for the environment but also I would like to have the core switch sync with a public NTP server. Can you advise if this is possible? I have seen both commands available on the switc...
Hello, I can't get a grip on the IOS versioning numbering.Taking 12.2(44)SE3 as an example, (44) sould be maintainance number and the 3 of SE3 sould be the rebuild number. What is the difference beween these?An higher maintainance number of a softwar...
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