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Hi, Have this setup: Core                 Dist 4500X  <===> 3850 Trunking between the 2. Vlan in Database Vlan allowed accros trunk SVI created Physical interface comes up Vlan is in active state SVI stays down. Any funnies wrg to 3850 and SVI's? ...

dmay2 by Level 1
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Hi, I understand to connect a layer 2 switch with 3 vlans for example (vlan 1-3) to a router, we need to create 3 sub-interfaces on the router port so that we can do inter-vlan routing. If I connect it with a layer 3 switch with 3 SVI and convert o...

gatecrash by Level 1
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Hi All, To begin with, I am learning Cisco networking so apologies if this is a stupid question. I have a following setup. Now I have configured OSPF on Routers R1, R2 and R3 and I see the OSPF seems to have done its work just fine, have a look:...

Hello I have been using the C4507R+E with WS-X45-SUP8-E supervisor. I tried to configure the SSH for remote connect. but i couldn't complete that. it seems to be doesn't support any SSH command on this OS version. cat4500es8-universal.SPA.03.07.02.E...

I have two 5505's with one Sup. III module each. I can't get either 5505 to communicate via the console port at all. The PC shows the Com port is connnected, but no matter what, I get no communication with the switches. Is there something different a...

anarchyx67 by Level 1
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hi, most of the examples I saw regarding RADIUS configuration whether from Internet or books, are illustrated with VTY Telnet.  I am confused a bit here, is this the scope of RADIUS with Cisco IOS? I was thinking about a scenario of Host-1---------...

Hi all, we have upgraded our core switch from cat3560x to cat 4506e with SUP 7 and i am going to be crazy from private vlans. :( Can anyone helps me with som default port config fou my 4 scenarios? Before i have used simple protected port on acces an...

Hi, I know igmp is in layer 2 and pim if there is layer 3 So if I have nexus 5k as core and 2960 edges and source is connected to N5k in vlan 100 And all vlans SVIs is created on N5k Where to configure igmp snooping querier ir configuring PIM on al...

Dear Members, I have a 3 tier architecture in my network and i am planning to redesign the same.. I am planning to have VSS in the Core(WS-6509E) with SUP 720 3BXL. I wanted to ensure that i have redundancy in the distribution as well. However i nee...

 WS-C2960-48TT-L version c2960-lanbase-mz.122-25.SEE4.bin have a high CPU usage, but i can't find a process with high usage. CPU utilization for five seconds: 88%/65%; one minute: 89%; five minutes: 90%  PID Runtime(ms)   Invoked      uSecs   5Sec ...