Switching

Hi All, We have a 3750 core switch in our DC. I'm having an issue whereby the tcp ack number is being changed for traffic going to/from a Cisco 887 router we're using. I have narrowed this issue down by performed wireshark captures on the following ...

Hi All , we have configured SSh on our primary and secondry core switch , SSH is working on primary Switch but we are unabme to access secondry Core switch through SSH . Error are as under :ov 28 09:14:15.380: SSH1: starting SSH control processov 28...

Hi, We have a ASR1001x and I saw a jump in CPU utilization when using the command "show proc cpu"  I know this is showing load on the CPU for management etc, however, does anyone have a reason why we may see a jump from 3-5% to 15%. From the "show pr...

Sorry, the discussions dont support pkt files so I changed the extension on it. But I have included a JPEG to help visualize where I'm at. But also my router and switch configuration: CORP Router config: Current configuration : 1451 bytes ! version...

Hi to all, I have updated different routers; 881G, 1921, 2921 to the latest corresponding IOS version (c880data-universalk9-mz.154-3.M4.bin, c1900-universalk9-mz.SPA.154-3.M4.bin, c2900-universalk9-mz.SPA.154-3.M4.bi) but some of them (from all type...

Hi All , Briefly I have I-BGP session between R1 lo0 & R3 lo0  that advertise Loopbacks from two routers , although I can see R3 Lo3 appeared in R1 routing table and via reverse for R3 , I can not initiate BGP session between R1 Lo1 and R3 Lo3. debug...

Having issue with arp, I have to clear arp on my router 2951 to establish connectivity. I have a 2951 with sub-interfaces, one of my sub-interface is connected to my ASA logically as Inside and I configured  a bridge group on my ASA. vlan 215/216 ins...

Hi all, i am newbie here, my company have cisco 6500 switch with FWSM module (we called it A) connect to other 6500 (called B) via port channel, inside the FWSM switch A has 2 vlans and OSPF routing and it need to dismantle, because will be replace b...

I have an 1841 as my public facing router. Inside the network are multiple subnets. Two of those subnets have server infrastructure for two separate companies. One currently has a PPTP connection setup using Windows RRAS with the necessary port forwa...

Hello,  I need to know how to downgrade software of catalyst 3850,  from 3.7.2 to 3.6.3  thanks,

Hi All I'm new to cisco devices and i'm stuck since a few days on creating following basic scenario: What i would like to accomplish is setup a wifi for private clients and guests on different vlans which cannot communicate between each other. Right ...

Hello, Trying to understand how I can see a 3.5Gbps burst of traffic on a 1Gbps interface. The traffic was captured with a laptiop from a SPAN port on a Cisco switch and the source is a four 1Gbps port channel. I consistently see about 1Gbps utiliz...

Hi, We need to provide specific information to our customer that how much delay will be added by L2 switch (2960) while switching packets from one port to other port. Let say we are forwaring voice RTP stream which needs 64 Kbps of bandwidth, when it...