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...
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Forum Posts
I have small network of approx 100 pc's, pix 501, catalyst 4503, and a catalyst 3560 that serves approx 8 of those pc's. I have 7 vlans. We do right much h323 video conferencing and those devices are attached directly to the 4503 in their own vlan....
Resolved! 62.5u or 50u Fiber connections
HiCurrently we are using 62.5u fiber between the core switch and the uplinks from our access switches.If we change from 62.5 to 50 do we have to replace the GBICs and 1000base SX SPFs? I realize I'll need new patch cables but not sure on the fiber t...
Hi I have Network analysis module (WS-SVC-NAM-2)with application image 3.3(1-Patch-3, installed with a 6509 series switch. My time zone is not reflecting under NAM local time zone . My time zone is IST +5.30 GMT. pls suggest..
hello everyone,i'm trying to provide my technicians with an interesting task to work with. i'm looking for myth or known problems to be solved, something not to hard.can someone tell me about one or direct me to a website? thanks a lot
Hi netpro,when i type " show int trunk " i got this result. this is something wrong . Port Vlans in spanning tree forwarding state and not prunedGi1/1 noneGi2/1 1,10-11,20,22,30,40,50-51,60-61,70-71,80-84,90-94,100-102,110-113,120,...
Resolved! 10 gb blade for catalyst 6509 switch?
hi every body while reading a book on switching i came across this line" 10 Gb blade for catayst 6509 support only 802.1q while the switch itself supports both 802.1q and isl"what is 10 Gb blade?i googled it but still not suredoes anybody know about ...
Hi AllI posted a question earlier on the "Getting started with LAN's" forum re: IPv6 Link Local & Site Local addresses which I don't want to cross post. However, just in case there are any IPv6 gurus here who do not post on the "Getting Started" foru...
Resolved! max number of vlans
hi every bodyi read in ccna book by wendom that isl and dot.1q have 12 bit vlan id and thus support same number of vlans.But then i read somewhere isl supports max 1000 vlans while 802.1q can support max 4096 vlans.which one is correct?thanks alot
Ok, I tried searching before posting, but I couldn't really narrow my search terms, so no luck.I have a couple of vlans 1,9,14 in relation to this issue. For some reason, vlan 9 all of a sudden, the clients are not receiving dhcp offers. The dhcp s...
Hi,The following lab router provides error messages. Could someone assist with troubleshooting.Thanks.Destination filename [startup-config]?Building configuration...[OK]Router#ping 192.168.1.1Type escape sequence to abort.Sending 5, 100-byte ICMP Ec...
Hi all,R5 is hub and R2 and R4 are spokes . i have to use ip pim autorp listner command on all the routers. R5 loopback is the the rp .The problem i am having is that when i ping from R2 to R4 igmp group 224.1.1.1 i get first two replies but rest tim...
I currently have a PTP T1 that has two 1720 's configured to use bridging. I would like to use ip routing instead of bridging. My 1720's have wic-t1 cards and use Kentrix, DataSmart 658's as DSU/CSU. When I enable ip routing on local 1720 I loose ...
Hello!do i need to connect my 2 6509e via a trunk 10gig ports?plz explain about this Issues10xs
Quick question from a networking newbie about best practices - if I have a number of 1U rack mounted servers, say 24 or 48, each with multiple Ethernet ports, e.g 4 - RJ45 ports for each of primary data, redundant data, console / management, KVM in t...
Whenever I try to configure my sub interface on my ethernet port with a IP ADDRESS I get the message below. I have tried several routers and all of them give me the same ERROR. 2620, 2610 and 2620 Configuring IP routing on a LAN subinterface is only ...
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