Switching

Resolved! High inter vlan Packet drops on cisco 3850

Inventory:*************Cisco 3850 core Switch3 Cisco 3650 Access switchesMPLS Router 2900 seriesCheckpoint Firewall2 Aps 2600 series. We have 3 Vlans in the network. These are Vlan 1, Vlan 133 and Vlan 164.Please refer to the attached network diagr...

N7K Inserted dynamically learnt multicast source mac

we have two N7k with vesion 6.1(2) and stack 2960 switches in the floors .each switch 2960 connected to N7K using VPC link.yesterday , we recevied many critical message from N7k as the following.3/5/2013 8:56:30AM 10.1.1.2 Critical : UTC: Inserted d...

Cisco Router DHCP address reservation for device with Repeater

Hello,This is my configuration. Cisco Router -> AP -> Repeater -> Device.I am trying to configure DHCP, so this device would use reserved IP address. This is my configuration:ip dhcp excluded-address 192.168.100.1 192.168.100.100ip dhcp excluded-addr...

How do I find error counters not equal to zero?

What regular expression do I use to find error counters not equal to zero on an IOS based switch?

Output queue drops on Cisco 3020

Dear All, In one of my c-Class Enclosures I have two Cisco 3020.On one of them I found output queue drops, drops that increases every day.. most probably during the night.Drops are either on uplinks and access ports (backplane and external). Interf...

7600 QoS Issues with juniper

I´m having some issues with frames going into a 7600 with ToS value, but when going out from the 7600 dont have any more the ToS value.This is happening when the source of the ip packets is a juniper.

vPC PeerLink

We are implementing a new redundant Nexus 7K replacement of redundant Catalyst 6500s and were thinking of temporarily uplinking the old to the new via L2 Trunk Interfaces (non-vpc). Would this be acceptable and would traffic traverse the peerlink if ...

Resolved! IP Routing & IP Multicast Commands are not available on WS-C3750X-48P-L

Hi,I got two switches :WS-C3750X-48P-LWS-C3750X-24P-Sboth are running on 12.2(55)SE5 but I couldn't find both ip routing & ip multicast on WS-C3750X-48P-LI have upgarde WS-C3750X-48P-L to the lastest version 15.2.1E2 and I got only ip routing comman...

Cisco Switches and HP Interoperability with Spanning-Tree (RSTP)

Hello All. I read a lot of information from this forum about Spaning-Tree interoperability between HP Switches and Cisco Switches.Rather than having questions I would like to post that I manage to configure successfully HP and Cisco using RSTP (802.1...

Resolved! Ask the Expert: Fortify Your LAN with Cisco Catalyst Switching

Welcome to this Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about how to fortify your LAN with Cisco Catalyst switching with expert Vaibhav Katkade.Cisco subject matter expert Vaibhav Katkad...

How to telnet into an unknown IP

Hello world, Here is the situation, I have a serial terminal box (IOLAN black box to be exact). I have no idea what the IP of this box is but I do know it's MAC address. I need to telnet into this box to be able to change configs on it. I have it con...

cisco 4500 fragmented Memory

Hi, Pls confirm how to check fragmented memory is increasing or not in 45xx switch # sh memory summary Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)Processor 12B5908C 491417456 175424...

Dynamic IP by Switch Port

Hello Cisco Team,We have the following request from our production IT Team:WE have certain production devices that are plug into our CISCO Switches such as PLC or Video Cameras. The question is it possible to assign these devices a dymamic IP based o...