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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...

Is it possible to stop multicast traffic from flooding all switch ports on a VLAN without a router interface on it? IGMP snooping only seems to work if there is a router interface present on the network with PIM enabled. I believe I can statically ...

vaniello by Level 1
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I am looking for a command that will show me a summary of port usage. What we are running into is we are trying to identify ports that have had usage on them over the last month. We have issued a clear counters to clear input/output traffic and now...

I have a pair of Checkpoint NGx R65 running in ClusterXL Active/Active Unicast mode.Eth0 of FW1 is connect to Catalyst switch SW1 6513 port 7/7 and Eth0 of FW2is connected to Catalyst switch SW2 6513 port 7/8. There is an EtherChanneltrunk between th...

cisco24x7 by Level 6
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Hi, I have a 48port 3750 PoE switch running ip base 122-46.SE. The switch is connected to RPS2300.The issue is when I test the RPS failover, the switch fails over to the RPS ok, however when it fails back by manually pushing the standby and active bu...

Hi everyone,I have a 3750 switch stack with three members, and I would like to add a 4th one.the stack has a flash of IPSERVICES-M, and the switch I am adding is IPBASE-M.The question is, will I have a compatibility issue when I add the new switch?Th...

hi,myself Mangesh I am facing problem with switching, I am feeling there is possible STP loop occuring somewhere in my network.sh standby on core 3 6506:Vlan20 - Group 1Local state is Active, priority 200, may preemptHellotime 3 sec, holdtime 10 secN...

Hi all, can anyone tell me how ospf works out the best cost to a destination? what metrics does it use? If I have say 2 circuits to the same destination, 1 has 10 routers, all with 2 meg lines, the other router uses 3 routers to get there but with th...

Hello fellow Císco-fansIs it possible, on a 3560, to estblish dhcp on a pr vlan basis? (if i have 8 vlan'son a switch, can i have 8 instances of a dhcp server running?)If it is in deed possible - how is it configured?Best rgds/Jan - Denmark(CCNA, st...

towli by Level 1
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Hi,I have set up (in my lab) a transparent tunk between a L2 2950 and a L3 3550. The 3550 in providing the 2950 with the intevlaning etc and works well.However I have heard another method to setup vlans on both switches is VTP and using a server and...

whiteford by Level 1
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  • 6 replies
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Hi all, when we setup a full 3 tier network, core, access ,dist layers, Can anyone tell me why we need to link the core routers directly to one another? when we have the distribution switches connected to both cores and load balanced using ospf, how ...

I want to bind two Ips on a single interface, basically i have a site to site vpn and other side wants me to inject uisng a perticular private IP. I have nat enabled I am using 192.168.1.0/24 and other site wants me to inject 192.168.211.0/29 Please ...

Hi,I was wondering how I can sync my router with a time server? Is there one on the Internet or can I simply use a my Windows Domain Controllers clock? It doesn't have any special clock program just its default clock.If external do you have an IP s...

whiteford by Level 1
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  • 5 replies
  • 0 Helpful votes