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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...

HiFor a given port on a Catalyst 4948 I need to determine:if the interface is a trunkwhich mac-addresses the interface has seen (same info as "show mac-address-table dynamic" gives)which VLAN the interface is onThe major problem is the it seems that ...

What is the recommended maximum number of 3750s to place in a stack, and what performance issues can I expect to see (CPU, memory, SNMP drops, etc.,) as that number is approached?Thank you.

Hi All,I had issue on telnet.Recently, I have replaced an old module WS-X6408A-GBIC with new module WS-X6724-SFP for C6505-E core switch.After replacing, siter FM tried to telnet to remote core switch, but failed with error message as below:%SEC-4-TO...

Yi Fan XU by Level 1
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  • 3 replies
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Hi,I want to make a C3550 synced to an ntp server. But it doesn't work.Theese are the details:ntp_sw#sh verCisco Internetwork Operating System SoftwareIOS (tm) C3550 Software (C3550-I9Q3L2-M), Version 12.1(19)EA1c, RELEASE SOFTWARE (fc2)Copyright (c)...

Csaba Gal by Level 1
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Hi,I am currently having Metro Ethernet Connection from service provider, they have provided us primary and backup link to our branches.they have provided us last mile copper (fast ethernet) and have two VLANS, for that i have created subinterfaces, ...

zafar12233 by Level 1
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  • 11 replies
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Configuration: catalyst 3560 switch5 vlans with 4 ports each, 1 vlan with 8 ports, 1 vlan with 16 portssystem mtu jumbo set to 9014igmnp snooping on or off not making a differenceno routing between vlans the 5 4port vlans consist of one multicast gen...