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Hi, i have SFP 1000BaseLX SFP (PID-GLC-LH-SMD) which is inserted on WS-C3560CX port, i want to use this SFP to interconnect switch WS-C3560CX and WS-C4506-E port module WS-X4712-SFP+E,  could you please confirm if SFP 1000BaseLX is supported on modul...

Anukalp S by Level 1
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Hi Everone,i'm not very experienced in Multicast routing , i would appreciate your help in below issue that i'm facing,here is my setup,Cisco-6509E with few VLAN , Multicast Stream source are present on VLAN3 ,Cisco 6509E ---> port channel Trunk (2 S...

Hello,  Which method is the preferred method when connecting uplinks between the distribution and core layers? Is ECMP (L3 individual links) preferred over L3-MEC? The distribution and core layers are configured in VSS.  Thanks in advance.  Best, ~zK...

zekebashi by Level 4
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Hello  im new in packtet tracer and English is not my first language. My packet tracer is 2019 version and I put down a server. i wanna go into services in the server for TFTP, but there are only two tabs like programming and desktop. Is there any go...

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jin2222 by Level 1
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Hello guys, Two questions: 1) double-tagging work in one direction What would be the reason of performing this type of attack ? DoS? 2) Works when attackers pc is connected a switch port that resides in the same VLAN as the native VLAN of the tr...

 Hello all,  So I know with the Cat 9500 and 9300 it's a global config "system MTU xxxx" and this sets all interfaces to the new MTU. We are having issues of slowness to the VMware servers and in between servers. They are connected via 10G ports, pin...

kalen4101 by Level 1
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Resolved! Catalyst 9200 QoS

Dear Friends, i trying to test qos based on vlan on the C9200L-48T-4X with iosxe version 16.9.3. First i created this schemeHypervisor 1 <> Switch <> Hypervisor 2, then i set marking settings on the hypervisors.Next step for test i enable autocos on ...

Hello, I've upgraded many Cisco switches and routers before, but never a Nexus where I have 2 to do. I've taken a backup and have been given nxos.7.0.3.I4.8a.bin to install. Can someone help provide the simple steps?  Here is a show version: Software...

Hello guys!I hope that all of you are well and safe in this crazy time.Is it this errors  problem or not and how to fix itThank you in advance.  FastEthernet0/0 is up, line protocol is upHardware is AmdFE, address is 000e.837a.8f80 (bia 000e.837a.8f8...

Hello, i have 9k switches, and CSSM Satelite for SMART licensing .The switches was successfully registered to CSSM until yesterday.  On every device, we had shown : Registration expired : 29.5.2020. 14:59After that time, all devices went to evaluatio...

ibrkic001 by Level 1
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What is a good way to practice VTP labs without buying expensive switches.I have Catalyst 3750 series switches  withCisco IOS Software, C3750 Software (C3750-ADVIPSERVICESK9-M), Version 12.2(44)SE4, RELEASE SOFTWARE (fc1)but it only supports  VTP  ve...

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