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Policy Map "Speed Limiting" on 3600 ME Switch

eng_hatem2050
Level 1
Level 1

I have a problem related limiting bandwidth on 3600 Switch, as while I applying the policy-map under Gigaethernet interface with any bandwidth value, a packet loss be appear although it carries a light traffic, and once I removed it, all thing work good, appreciate your help.

Switch#show version

Cisco IOS Software, ME360x_t Software (ME360x_t-UNIVERSAL-M), Version 15.3(3)S, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Thu 25-Jul-13 17:59 by prod_rel_team

 

 

ROM: Bootstrap program is WHALES boot loader

BOOTLDR: ME-3600X-24CX-M Boot Loader (ME360X-HBOOT-M), Version 12.2 [chetasha-14Dec_w2_loader 104]

 

 

Switch uptime is 2 years, 41 weeks, 6 days, 4 hours, 45 minutes

System returned to ROM by power-on

System image file is "flash:me360x_t-universal-mz.153/me360x_t-universal-mz.153.bin"

Last reload reason: power-on

 

 

 

 

License Level: AdvancedMetroIPAccess

License Type: Permanent

Next reload license Level: AdvancedMetroIPAccess

 

 

cisco ME-3600X-24CX-M (PowerPC8572) processor with 983040K/65528K bytes of memory.

Processor board ID FOC1751N2FF

Last reset from power-on

3 Virtual Ethernet interfaces

25 Gigabit Ethernet interfaces

2 Ten Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

 

 

1536K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address       : 3C:08:F6:DD:C8:00

Motherboard assembly number     : 73-15815-01

Motherboard serial number       : FOC1750N4EJ

Motherboard revision number     : B0

Model number                    : ME-3600X-24CX-M

System serial number            : FOC1751N2FF

Top Assembly Part Number        : 68-5095-01

Top Assembly Revision Number    : D0

Version ID                      : V02

CLEI Code Number                : IPMT700DRC

 

 

Version Display:

===============

Psoc CPU version: 0x6

Psoc NILE version: 0xB

Blowhole Version: 0x24

Handoff FPGA version: 0x40002

TDM processor Eeprom version: 0x1

 

 

Configuration register is 0xF

 

Switch#show processes cpu

CPU utilization for five seconds: 3%/0%; one minute: 2%; five minutes: 2%

 

Switch#show policy-map 4M

  Policy Map 4M

    Class class-default

     police cir 4096000 bc 1500000

       conform-action transmit

       exceed-action drop

 

Switch#show run interface Gi0/19

Building configuration...

Current configuration : 208 bytes

!

interface GigabitEthernet0/19

description BANK_QATR_C-186385

switchport trunk allowed vlan 800

switchport mode trunk

service-policy input 4M

service-policy output 4M

end

Switch#show policy-map interface gi0/19

GigabitEthernet0/19

 

 

  Service-policy input: 4M

 

 

    Class-map: class-default (match-any) 

      1766350 packets, 572046973 bytes

      5 minute offered rate 126000 bps, drop rate 0000 bps

      Match: any

      police:

        cir 4096000 bps, bc 1500000 bytes

        conform-action transmit

        exceed-action drop

      conform: 1764722 (packets) 569685560 (bytes)

      exceed: 1678 (packets) 2376757 (bytes)

      conform: 127000 bps, exceed: 0 bps

      Input Policer:

        Policer Packets Drop: 1678

        Policer Bytes Drop: 2376757

 

 

  Service-policy output: 4M

 

 

    Class-map: class-default (match-any) 

      1674263 packets, 347895701 bytes

      5 minute offered rate 53000 bps, drop rate 0000 bps

      Match: any

      police:

        cir 4096000 bps, bc 1500000 bytes

        conform-action transmit

        exceed-action drop

      conform: 1674094 (packets) 340977237 (bytes)

      exceed: 155 (packets) 219662 (bytes)

      conform: 52000 bps, exceed: 0 bps

      Output Queue:

        Default Queue-limit 49152 bytes

        Tail Packets Drop: 155

        Tail Bytes Drop: 220282

1 Reply 1

Philip D'Ath
VIP Alumni
VIP Alumni

If you are sure the traffic is "in profile" then try increasing the bc parameter.  I would try doubling it to see the impact.

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