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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...

Hi All,We have one layer 3 switch. Configured monitor session to copy all the data in vlan 2 ports (RX only) to one sniffer port. There is one interface in this switch configured as a router interface. As I know router interface doesn't carry vlan in...

I am struggling with a couple of people on designing a new campus in regards to layer 2 and spanning tree.  We have an established distributino layer with dual 6509 chassis that are innerconnected with a layer 2 trunk.  The access closets are dual co...

I have a series of 2950,2960 & 3560 switches on my network and I am wanting to fine tune the settings on these switches.We are not running any POE instruments on any of the switches in question.So I am trying to have the switches setup in the most ef...

Hi,Can anyonehelp me understand an issue with ARP logic?  I installed a multi-context firewall and did not use the auto mac command.  The router showed (for example) for the subinterfaces on the contextsarp ip x.x.x.30  mac xxxx.xxxx.fee1arp ip x.x.x...

We have witnessed the following memory dump on the collocated router.  find the remedy for this *Jul 16 10:03:26.942: %SCHED-7-WATCH: Attempt to enqueue uninitialized watched queue(address 0). -Process= "Virtual Exec", ipl= 0, pid= 192,  -Traceback= ...

Hi,I would like to know if this is even possible? If it is possible, can I assign static mac address to route the other switch? For example:  If dest mac address matches A:B:C:D:E:F, send it to port 38.  So if Port 2 receives this packet, it will be ...

I have a 3750G-PoE-48 stack with 4 units.  Member 3 of the stack has around 15 ports with Receive Errors ranging from under 100 to almost 50,000.  None of the other stack members show any Receive Errors.  Could it just be coincident on the devices pl...

fasteddye by Level 1
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I am trying to setup 802.1x PEAP in my home lab. I have:a windows 2003 enterprise server with SP2 and latest patches running asActive Directory, DHCP, DNS, WINS. The AD domain name is LAB.The windows 2003 is also running Cisco ACS 4.0.1 with a self...

All, I have a 3750 stacked switch with 2 or so svi interfaces. Vlan50 and Vlan204.A device which is hardcoded as switchport access mode is on the 50 vlan. I can ping the device, which has an IP of 10.175.56.15 from its source vlan 50 ip of 10.175.56....

bouwman22 by Level 1
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Hi all,I'm new in MST and configured a switched network with Catalyst 3550, 2960, 2950 on a lab enviroment. The purpose is to test MST before getting it to production to prevent nasty surprises.I've configured the network with 2 MST instances and eve...

Resolved! QOS 6513

I want to enable QOS across my campus network.  I need to prioritize traffic for video and voice.  I have a mix of 3500/3550/3560 at L2 and 6513  w/SUP720 (12.2-33SXI1) at L3. From what I have been able to read at layer 2 I can use auto qos, but what...

Resolved! flat network

Hi every body.I have few questions.i was reading u flat network.  I googled it and found following:One diagram shows  a hub    connected to hosts. So  I thought  a flat network  is a network where broadcast send by one host will be head by all.Then i...

sarahr202 by Level 5
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st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4p...

whelanj by Level 1
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  • 11 replies
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Hi,My name is Sandeep and I am facing very weird problem with my 2960 switch. I have configured my Juniper firewall interface with the ip 10.11.89.5/24 and connected it to 2960 switch port. The default VLAN created on switch is carrying ip address 10...