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
Resolved! C2960 energywise - some experiments
Hi Ken,Had a little play with energywise on a Cisco 2960 LANlite switch..I have pasted far below, the demo script I used as an example of a number of technologies available for you to use.I make use of the ;alias andkron commands in my simulation t...
Hello All,We encountered a line card reload during connection tests.I'm trying to understand what happened.The technician on side just connected a laptop to a Ethernet port and the line card reloaded.If I'm not misunderstanding I remenber that if you...
Hi Friends,My query is " if i have 4 switches A, B, C and D and no hardcore spanning tree priority is configured for Vlan X and Y.But for vlan X and Y switch A is root bridge by default spanning tree calculation. Now i want to configure switch A as r...
Hi,I have:1x WS-SUP720 (SW:s72033-ipservicesk9-mz.151-1.SY1.bin on disk1) 1x WS-SUP720-B3 (SW:s72033-ipservicesk9-mz.151-1.SY1.bin on disk1) as a replacement of defective WS-SUP720The 1x WS-SUP720-B3 can't be boot (only in ROMMON mode) below is the o...
Resolved! Nexus 5K with layer 3 card
Hi,We have a nexus 5548UP with layer 3 daughter board installed. Do i need to install any other license for intervlan routing on this switch?The network has multiple SVI vlans & they need to communicate between them.Below are the outputs from it;sh m...
Hi,I have a 3750X-48T-L in stack running IOS 12.2(58)SE1, connected with 2x1Gb/s in etherchannel to a 3750G-12S stack running IOS 12.2(35)SE5.The 3750X reports:May 8 10:01:05: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/1/1: Temperature low alarm; Operating...
Resolved! IPVPN as backup to MPLS
I would like to know if i use 2921 to make MPLS connection and make IPVPN as a backup tunnel if MPLS fail. What protocol is good to use like BGP or OSPF for automatically failover if MPLS is down?
Hi allI currently have the current setupDMZ switch > Dist switch > WAN > Dist switch > DMZ switchSo basically the DMZ switch plugs into the dist switch, from this dist switch is a ethernet wan connection, which plugs into a dist switch on the remote ...
hiWe had following critical error on the Nexus switch on 3rd July which caused full module restart and all fiber links going down. We need to investigate the root cause for this issue and raise support call for the same:2013 Jul 3 16:24:51 ADDC-Core...
hi all,i turned on jumbo frame on my 3750/2960/asa-5515x. The interfaces are on 9000 after I reload but my 3750/2960 is still on "system mtu routing 1500". Do I need to put it also on jumbo frame? What will be the behaviour on old system like XP (...
HelloOne of my customer has CISCO 881 K9 and like to add security option to the router. I am having problem in locating the right SW license option to order, please guide me to the right P/N to order.Ronen
Resolved! Loopback interfaces vs Management VLAN
Hi,I wondering about best practices when it comes to addressing. For a new network I thought I would start it right by creating a loopback address and having that the address configured in TACACS and SolarWinds and that being the address we use to SS...
Hi all,I have quite a problem at my new employer. A few years ago a company was employed to install and configure a wireless network. The company installed:Cisco WS-C3560-8PC-S 3560 8-PORT Poe Catalyst SwitchCisco WLC5264x LAP521 Access PointsThe com...
Resolved! Single nexus 5K with fabric extenders
Hi,I have a bit strange issue. One of our subsidary sites has only following Nexus components;one 5K ( with Layer 3 board ) one 2248TP two 2232TMone 3048TPThere are servers which needs to be connected to these infra. Following are my doubts;1. Can i ...
Resolved! DHCP excluded address
Vlan 602 lan10.202.41.128/27 usable range 10.202.41.129 - 10.202.41.190usable range from 129 - .158Vlan 603 wifi10.202.41.160/27 usable range 10.202.41.161 - 10.202.41.189I want to use the the range .159 - 189 ...
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