INE Vol2 - Troubleshooting Lab 4

Failed... total disaster

Training some MQC

Hm.. why do i always get Tracebacks when i apply "service-policy" ? ;) Who has the answer ?

Rack1R5(config-if)#service-policy output 1033
Rack1R5(config-if)#
*Jul 27 08:30:52.800: %SYS-2-INTSCHED: 'may_suspend' at level 4 -Process= "Exec", ipl= 4, pid= 88,  -Traceback= 0x816F117z 0xA728AD3z 0x9B4482Az 0x9B3A931z 0xA06F7EEz 0xA07813Bz 0xA076320z 0xA070C64z 0xA05BE2Cz 0xA069090z 0xA17F14Az 0xA0BED8Cz 0xA0B6B58z 0xA0B6920z 0xA0B90BEz 0xA1CC6A3z
*Jul 27 08:30:52.800: %SYS-2-INTSCHED: 'may_suspend' at level 4 -Process= "Exec", ipl= 4, pid= 88,  -Traceback= 0x816F117z 0xA728AD3z 0x9B4482Az 0x9B3A931z 0xA06F803z 0xA07813Bz 0xA076320z 0xA070C64z 0xA05BE2Cz 0xA069090z 0xA17F14Az 0xA0BED8Cz 0xA0B6B58z 0xA0B6920z 0xA0B90BEz 0xA1CC6A3z
Rack1R5(config-if)#

INE WB Vol1 - 10.40 MQC Class-Based Generic Traffic Shaping

FRTS by default assumes Be=0, while GTS by default assumes
Be=Bc.

Config with be = 0

policy-map 1040_67
 class class-default
    shape average 512000 10240 0

Rack1R6#show policy-map interface eth0/0.67 
 Ethernet0/0.67 

  Service-policy output: 1040_67

    Class-map: class-default (match-any)
      4 packets, 1336 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: any 
      Queueing
      queue limit 64 packets
      (queue depth/total drops/no-buffer drops) 0/0/0
      (pkts output/bytes output) 4/1520
      shape (average) cir 512000, bc 10240, be 0
      target shape rate 512000

!

Config without be

policy-map 1040_67_BE
 class class-default
    shape average 512000 10240

Rack1R6#show policy-map interface eth0/0.146
 Ethernet0/0.146 

  Service-policy output: 1040_67_BE

    Class-map: class-default (match-any)
      3 packets, 1264 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: any 
      Queueing
      queue limit 64 packets
      (queue depth/total drops/no-buffer drops) 0/0/0
      (pkts output/bytes output) 3/570
      shape (average) cir 512000, bc 10240, be 10240
      target shape rate 512000
Rack1R6#

INE WB Vol1 - 10.32 Frame-Relay Traffic Policing & Congestion Mgmt

Aha..

INE WB Vol1 - 10.20 Legacy Frame Relay Traffic Shaping

Be = Tc * (PIR - CIR)

256 kbit allowed, Peaks up to 384kbit/s , 10ms Tc

Be = 10ms * (384 - 256)
Be = 10ms * 128kbit
Be = 128000bit * 10/1000
Be = 1280bit/10ms

INE WB Vol1 - 10.18 Legacy CAR Access-Lists

A really nice one...

Good that we have DocCD -> Cisco 12.4T->Configuration Guides -> QoS -> Part 1 : Classification -> Configuring Committed Access Rate

INE WB Vol1 - 10.17 Legacy CAR for Rate Limiting

Cisco recommendation of (Bc = CIR * 1,5) and (Be = Bc * 2)

256000 / 8 * 1,5 = 48000 byte Bc -> 48000 Bc * 2 = 96000

If Be=Bc = Burst Excessive disabled.

 rate-limit input 256000 48000 96000 conform-action transmit exceed-action drop