Switching

Ghost in the wire? MACFLAPPING

I've got an issue that even TAC is having trouble finding the answer to:I have a customer with a small campus. At the main agg site, there is a stack of 3650s which also does their routing. At the smaller buildings, there are individual 3650s tied i...

Connecting 2911 router to WAN and Internet

I have a cisco 2911 router. One interface is connected to local head quarter network, the second one is connected to service provider internet service. I want to connect the third interface to connect it to the MPLS VPN conection provided by the serv...

Mac address have flap ping

Hi I seeing logging mac address flapping on core switch You can see to connectivity my network in the below. [no AP]-----------Sw[A]---trunk----Core Switch-----trunk---SW[B]------trunk------Sw[C]----->AP-----> NotebooK This's logging in core swi...

Resolved! Cisco 2911XM router not booting

I'm currently trying to upgrade IOS on a 2911 router. It seems like there is no any IOS for 2911 these days on the Internet... rommon 1 > dir flash: File size Checksum File name 3466848 bytes (0x...

Resolved! ISR 4221 Recommended IOS

All, I'm currently deploying a large quantity of 4221's for a customer to their branch locations. They have 16.4.1 preloaded but that particular release has been deferred. Any recommendations on a stable IOS release? Thanks. Best.

unable to use cos to dscp mapping

IE5000 running 15.2(4)EA5 How do I actually use the cos to dscp mappings? When I configure "match ip dscp 46 32", it's not displayed in the running config. I have configured a table-map but how do I apply it? table-map cos-dscp-tablemapmap from 0 t...

Resolved! ACL incomplete command

Trying to add extended ACL to 881 router getting Incomplete command at the end. If I ? it just returns all the options I have already selected. At a loss to whats going on here is it a bug or am I missing something really obvious? Router881(config-ex...

IP net flow configuration issue

Hello. I basically want to log the top talkers in a Cisco router for an extended period of time - 10-24 hours for example. I need to see both downstream and upstream top talkers. No matter how I configured it one of two things happen: *The stats ge...

Resolved! Passed ROUTE, looking for physical hardware for SWITCH, suggestions?

I'm looking at ebay, and the models that even have 15.0 loaded on them are getting up there in price. I have one 3560 I think will suffice, a bunch of 2950's from older studies that are door stoppers, and a 3550 I think is probably the same. If I h...

Config Backup Tool

Hi I am just query what other people use to auto backup their configs for routers, switches asa's etc periodically. Currently we do have Rancid setup but just wondering if there are any simpler alternatives, even if we have to purchase

Resolved! Auto error recovery in XE-OS

Hi, Anyone can help me that how to recover the error disabled interface in ASR 1K(XE-OS)

4500-SUP-Ports

Hi, Can i configure SUP ports in layer style? in other words can i configure ports on SUP of 4500 series switch with IP address? BR

Migrate 4500X to VSS on Actvie Network

I currently manage a 4500X Collapsed Core that has HSRP configured for the redundancy between them. I would like to configure them for VSS, but I can't take my network down for too long. Is this possible with minimum service interruption? Has anyone ...

MLAG Switch identification

Hi Lets say i have 2 Nexus 5K or 7K Switches (Switch A and B) on MLAG configuration and a Server (X) with 4 NIC (X1 to X4) connected to 2 switches with connection to each switch as 2 links per switch. Is there any way i can identify from the LACP p...

Asymmetric Issue solution?

Hi All, Good Day! Below diagram should be the right traffic flow but I would like to ask, what would be the best solution for asymmetric routing on this scenario. Going/From to 192.168.64.0 path should always use S1 to S3 vice versa. Going/From to ...