• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 582
  • Last Modified:

What does show interface command tell you about dropped packets?

Does the show interface command show packets that are dropped/flushed in hardware with CEF or packets processed by the CPU (Route Processed)? Or both?

If only RP packets then how do I see CEF packet drops?

We have phone vendor testing showing continuous packet loss but our Cisco switches and our network monitoring tools show very little and sporadic dropped packets. Maybe 5 or 10 packets dropped every 10 or 15 minutes. The load on the interfaces is also low. This is affecting our VOIP audio quality.

6000 series switch.
0
Dragon0x40
Asked:
Dragon0x40
  • 3
  • 2
1 Solution
 
DvonHoltzCommented:
Is it a Cisco VoIP? Are the calls between end points on the same switch, or across switches / MPLS?
0
 
Dragon0x40Author Commented:
Not Cisco phones.

Calls are across an MPLS cloud.

Do the interface stats drops show route processed and cef processed drops?
0
Sign your company up to try the MB 660 headset now

Take control and stay focused in noisy open office environments with the MB 660. By reducing background noise, you can revitalize your office and improve concentration.

 
DvonHoltzCommented:
Check your policy maps on the MPLS routers for policing statements.

show policy-map interface [Interface name]

If on both sides of the cloud you see no drops, then have the carrier check you traffic within the cloud.
0
 
Dragon0x40Author Commented:
We don't have any policy-map statements on any of the connections to the mpls cloud. I don't have access to the mpls routers.
0
 
Dragon0x40Author Commented:
Cisco swith and Wireshark don't show the dropped packets that a VOIP analyzer shows as drops.

VOIP counts a packet as dropped if it is delayed enough that it can not be reassembled into the voice stream before the packets are converted to sound and sent to the end user.

We weren't showing any dropped packets on our switches.
0

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now