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Hi,   I’m quite new to QoS and troubleshooting an output packet drop issue on a 3750x switch which seem to be due to QoS configuration.   I was following the instruction on this document for troubleshooting. http://www.cisco.com/c/en/us/support/docs/...

So I have a question about loopguard over point to point WAN links If at Site A we have Rtr-A to Switch A  ( Vlan 1)    OVER WAN   Switch B ( Vlan 1)  Rtr-B I think we do have spanning tree enabled on the switch ports so one side is the root bridge....

I am seeing a very high amount of input errors and overruns (they figures are exactly the same) on a router. I'm trying to identify all traffic going through the router initially. If I run a pcap on the router, would this capture packets before they ...

GRANT3779 by Frequent Contributor
  • 8 replies
  • 0 Helpful votes

Hello, Since this multicast address ( is used for Rp discovery, why this ip address is not listed under sh ip interface command -  " Multicast reserved groups joined:" " section ? All...

from88 by Enthusiast
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  • 0 Helpful votes

Hi all I am try to configurate WCCP in a Cisco 4900 device but I can´t do it, appear the following error: Packet forwarding mismatch (The router does not support the forwarding method (GRE or L2) This is our IOS version Cisco IOS Software, Catalyst ...

Hi All, I want to upgrade 3750 stack ( 3- switch stacked ) . Could any one let me know which process will be the most efficient , less down time required . 3750 Series Switch Stack IOS Upgrade - Automatic (.tar image) 3750 Series Switch Stack IOS U...

Hi all;   The following is the configuration that I have applied to an interface:   3560#show run in fas 0/7 Building configuration...   Current configuration : 122 bytes ! interface FastEthernet0/7 switchport mode access switchport port-security ...

Hi, Please tell me config of QoS(Shaping) on Catalyst3850. Sample config is correct??? I'm sorry, my English is not good. [Requirement]   HW:Catalyst3850, IOS:03.06.04.E   Set QoS(shaping) to a specific traffic. [Sample config] Switch(config)# acce...

YosukeOda by Beginner
  • 3 replies
  • 0 Helpful votes

Hi, I have received an email from my client to deploy HSRP+. I searched it but could not find any information about it. Kindly help me to find it. BR Abdul Karim

Hi everyone, i have cisco 2821 router. i am facing booting problem. anybody suggest me what is the problem. thanks in advance...... System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)Technical Support: http://www.cisco.com/techsupportCopyri...

So i have two cisco switch that needs to be connected via etherchannel Fastethernet 0/0 and 0/1 are to be used to form  etherchannel on both switches. The etherchannel will be a trunk and carry vlan 90,91,92. Question: Do i have to configure each sw...

CiscoBro by Beginner
  • 3 replies
  • 0 Helpful votes