Switching

Hello all,Because VRRP timers have to match on all the switches in the group, is it a best practice to configure vrrp timers learn on all VRRP switches in the group? Conversely, is there a scenario where vrrp timers learn would NOT be a good idea?

show controllersのレジスタの見方を教えてください。インターフェースのスピード/デュプレックスが対向ともにauto/autoに設定しているのに1000Mbpsにならず100Mbpsとなる原因を対向機、LANケーブル、自機のどこにあるのか特定するのが目的です。出力結果は以下の上段で下段は同じ機器構成の同じインターフェースで1000Mbpsでている比較対象事例です。各ビットが意味するところが分かるとよいのですが。機種：C2960L-UNIVERSALK9-M、Version 15.2(...

I'm trying to allow UPnP  ( I know - bad, don't do it, unsafe blah blah) on a single vlan dedicated to gaming.  I've got a pfsense firewall with upnp enabled handling all traffic for this vlan to the internet.  access switch (VLAN122) -> Core Switch ...

I am replacing EoL LAN kit for a customer and would like to check what I am proposing will work, this is summarised below:- Connect the new core switch (2 x 9500s with SWV) to the existing core via a layer 2 trunk which is trunking all VLANs- Connect...

Hello, We have CoreSwitches configured as DHCP servers and Layer3 for several Vlans but we started noticing DHCP timeouts and after analysis we found out that devices are sending a DHCP request almost every 2 minutes even if the lease time is configu...

Hello,I have nexus 9380 pre-configured with monitor session 1 and 2 for SPAN.Session 1 shows source as all port channels destination interface eth1/2Session 2 has source all vlans > destination interface eth1/20Now when am creating a session 3 and ad...

Hi! we used to set up the SD card using Windows 10 or 11...it now does not work with those OS'es. But it works using Linux format. Any explanations ? Thank you very much

Hello I'd appreciate some help here. I'm new and I'm trying to to get PC0 to be able to ping PC5 is says "destination host unreachable", both under 2 different switches. I did all i can and i'm stuck. I also noticed when i try to ping the first switc...

I have a 3550-12G switch that I need to upgrade the IOS on to remediate reported vulnerabilites.  If I go to IOS download on CCO and select the 12G model, the latest version I see available is 12.2(44)SE6.  If I use Ciscoworks SWIM to add an image to...

Hi Team,Could anyone please help to suggest the part code for below cable from Cisco?CAT6a Copper Cable - 7ft-Patch Cables 

Is it possible to push VLANs to switches in Catalyst Center using CLI templates? Can't for the life of me figure it out as none of the documentation covers it. I rea done doc that says you must do this at the device level which seems be anti-automati...

Hello,Metro.1.New# show monitor session allsession 1---------------type : localstate : down (Dst in wrong mode)acl-name : acl-name not specifiedsource intf :rx : Eth1/6tx : Eth1/6both : Eth1/6source VLANs :rx :tx :both :filter VLANs : filter not spec...