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I have two switches, switch01 and switch 02 is both connected through f0/1, switch01 is 2960 switch, switch 02 is 3850 switch switch01# int f0/1, sw mo tr , int f0/2 sw ac vl 10, int vlan 10,  ip add 12.12.12.1 255.255.255.0 switch02#int lo0 ip 2.2....

Hi Gurus,  This should be easy for somebody I hope. I have implemented ARP inspection and am getting some printers that seem to be sending ARP replies to themselves.  It doesn't stop them from working but does create annoying log messages.  Any idea ...

lpassmore by Level 1
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  • 5 replies
  • 0 Helpful votes

Доброго времени суток. На портах Catalyst 2960CPD-8PT-L Switch при проверке периодически сталкиваемся с ошибками OutDiscards : C2960C-761-30328#Sh interfaces counters errorsPort Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize OutDiscardsFa0/1 0 0 0 0 0 ...

o.vlasova by Level 1
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  • 0 replies
  • 0 Helpful votes

Is there a way that you can configure a 4500X VSS stack to automatically failback to the primary switch after a secondary switch failure or upgrade.  I upgraded the IOS on a 4500X VSS stack and reloaded the secondary switch first and then the primary...

NPT_2 by Level 2
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  • 4 replies
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I am currently working to design a hybrid IWAN network between three sites.  We currently have at each site 2 edge routers for MPLS (peering to a primary ISP and backup ISP) and two edge routers for INET (peering to a primary ISP and backup ISP).  We...

hi all, As we know, once we implement this command under this eigrp interface,it will suppress  more specific IP block been advertised out to eigrp neighbor.  for example:                               Eigrp 100 R1-interface gi 1/0--------------- int...

eric.guo by Level 1
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  • 20 replies
  • 0 Helpful votes

Hi there, Thanks for reading! Remote users complained of losing all network services.  Here's an ASCII "diagram": Router1 <-> CoreSW1  |       |Router2 <-> CoreSW2 RT1 & RT2 are confd as an HSRP pair. RT1 reports Late Collisions at the time of the ...

Bob Greer by Level 4
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  • 8 replies
  • 0 Helpful votes

Hi, Is it possible to have an interface that is both a destination in a local SPAN session and a destination in an ERSPAN session? So for example I have Switch A and B. On Switch A G0/1 is destination in a local monitor session and is also a destina...

mfurnival by Level 4
  • 864 Views
  • 4 replies
  • 0 Helpful votes

Any thoughts on this?  Having a strange problem.  On some of our newer 4510s (SUP 8e), I'm having some devices not getting dhcp addresses until I take off port-security.The background:  on at least two 4510s, new installs, everything comes up and wor...

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