Switching

WS-C2960+24TC-L Bootup issue

Dear folks,i have cisco 2960TC-L 24port switch, but after start just mode light is blinking continuously while console view has shown abnormally language. i.e -30)/@<><?|}{|}|}"|")|_|?}|()*^&*^&*|"|":}|P"|/@<><P:P}":P"}P"P"P:|?/@<><>?<><<<. even any ...

StackWise Source Stripping for Multicast

Question on the behavior of StackWise and the use of source stripping for Multicast. What are the theoretical maximum multicast only bandwidth capabilities for the stack (in this example let's say Stackwise 80)? Would we assume 40G or 20G total for s...

Resolved! IP Verify Source - Phones stop working

Good Morning, We are running "IP DHCP Snooping" on our 3650 (16.12.3a) switches. On 75% of these switches on average the "ip verify source" command works fine when implemented but on 25% of these 3650 switches the end users are unable to make calls...

Create an Access Port with bridge-domains on ASR1001-X

Good day.Im traying to create an access port on a ASR1001-X with Cisco IOS XE Software, Version 03.16.03.S and its not working has expected. For example:I have configured the interface BDI 2211 with ip 192.168.198.132 (gateway) and my laptop (IP 192...

port mirror destination port thru traffic

We have a port mirror in place - with a sniffer on the destination port. We cannot access the sni via IP "through" the destination port - is that by design?

STP bridge assurance port type change convergence

Hello, I have couple of C93108TC-EX (7.0(3)I7(6)) running RSTP with globally enabled bridge assurance. They are connected via vPC to the ACI and have the uplinks configured as "spanning-tree port type network" so the BA is enabled here which is not ...

Resolved! Cisco Nexius C3064PQ MAC Table problem with log "MTM buffers are full for unit 0"

Hello, We have some promlems with Cisco Nexus 3064 switch. Version informationSoftware BIOS: version 4.1.0 NXOS: version 7.0(3)I6(2) BIOS compile time: 02/02/2017 NXOS image file is: bootflash:///nxos.7.0.3.I6.2.bin NXOS compile time: 10/...

Command rejected: Voice Vlan cannot be configured on this interface error on WS-C3750V2-24TS-S

Please help me. I have this error when adding the voice vlan on the interface po1Command rejected: Voice Vlan cannot be configured on this interface

Automated OSPF Redundancy on a layer 3 switch

A layer 3 switch has access to two routers over an ethernet link directly connected. Each router has its own OSPF area and therefore clients hanging off of vlans within the switch cannot see both routers at one time. at no time will both routers be c...

Flow monitor configuration failure on Cat 3850 with 'match application name' in flow record for NBAR

Hi all, I have 3850 which I want to configure with netflow with NBAR (application identification). But it is failing with following error. If I remove 'match application name' from the flow record entry, then I am able to apply the monitor correctl...

Upgrade Cisco 3850 3.7.xE Stack

Hi there!I need to add a standalone Cisco 3850-48P to an existing Cisco 3850 stack of 3 (2x48P, 1x24P)Existing Stack (3xCisco 3850) (2x48 Ports, 1x24 Ports):Cisco IOS Software, IOS-XE Software, Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), V...

Cisco892でのPPPoEサーバ・クライアントの設定について

勉強用として、Cisco892を2台使用してPPPoE環境の構築をしたいのですが、PPPoE接続ができない状況です。＜構成＞PPPoEクライアント(Fa1) ----- (Fa1)PPPoEサーバ・どちらもCisco892・Version 15.0(1)M3、Version 15.1(4)M3 ＜設定＞PPPoEクライアントversion 15.0service timestamps debug datetime msecservice timestamps log datetime msec...

Resolved! Cisco Packet Tracer problem

Hey guys, I'm in College and quite bad at networking. I'm hoping you can help me. I had to design a network for small business which has 6 departments. I calculated the IPs and subnet masks for all departments. I've set the router to 192.168.1.1 and...

CAT9K (9410 & 9300) - IOS-XE (Fuji) - slow interface range programming

Having an odd issue with CAT9K running Everest/Fuji (yeah I know no surprise). But I'm seeing odd behavior between code releases that I wasn't expecting. From console (or ssh) on a C9410R running 16.06.03; BOOTLDR 10.6.2r(FC1) I can enter ranges of...

Cisco SG200-26

Howdy. I have a Cisco SG200-26. Does it support 1 gig simultaneous on all of the regular 24 ports? So if I have 24 people connecting via LAN would they each in parallel have 1 gig access each? Also if I connect two of these units together and let's...

Switching

Forum Posts

WS-C2960+24TC-L Bootup issue

StackWise Source Stripping for Multicast

Resolved! IP Verify Source - Phones stop working

Create an Access Port with bridge-domains on ASR1001-X

port mirror destination port thru traffic

STP bridge assurance port type change convergence

Resolved! Cisco Nexius C3064PQ MAC Table problem with log "MTM buffers are full for unit 0"

Command rejected: Voice Vlan cannot be configured on this interface error on WS-C3750V2-24TS-S

Automated OSPF Redundancy on a layer 3 switch

Flow monitor configuration failure on Cat 3850 with 'match application name' in flow record for NBAR

Upgrade Cisco 3850 3.7.xE Stack

Cisco892でのPPPoEサーバ・クライアントの設定について

Resolved! Cisco Packet Tracer problem

CAT9K (9410 & 9300) - IOS-XE (Fuji) - slow interface range programming

Cisco SG200-26

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Have your wish for humanity broadcast into space by George Takei!

Snmp server disable - MDS 9148s

successful loggings - MDS 9148S

Packet Sniffer taking screenshots of Private Terminal Sessions.....

"Getting Started with Cisco Packet Tracer" still in-progress

How to 802.1ad/0x88a8

RADIUS Clients Access Denied

Catalyst 2950 unable to delete config from Flash - permission denied

doublesided vPC set STP blocking portchannel and uses peerlink instead

does not execute the command crypto key generate rsa switch 3560G

Nexus 3172TQ - Access ports seem not to accept vlan tagged traffic