Ilmu, dakwah, dan keluarga: ME3600

NOC bilang ada high temperature yang disebabkan bahwa switch di RNC flapping. Memang sih ada flapping..

1554207: May 14 16:13:45 WIB: %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xx08.aa81 in vlan x00 is flapping between port VP3 and port Po1+Efpx00
1554208: May 14 16:13:45 WIB: %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xx09.5278 in vlan x00 is flapping between port VP3 and port Po1+Efpx00
1554209: May 14 16:13:46 WIB: %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xx00.2f78 in vlan x00 is flapping between port VP3 and port Po1+Efpx00

kenapa bisa tau high utilization nya karena flapping?? katanya begini :

xxx-ME3600-xxx#sh processes cpu sorted
CPU utilization for five seconds: 93%/40%; one minute: 94%; five minutes: 94%
PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
84   756462208 1192821049        634 46.38% 45.66% 44.87%   0 NLFM Learning Pr
81    64159820 1247163834         51 3.21% 3.21% 3.03%   0 Nile LED Process
77   395802052   140134743       2824 1.60% 1.31% 1.27%   0 npm counter proc
95   118802540    34047744       3489 0.72% 0.38% 0.36%   0 NL3MD_STAT

NOC said, " NLFM Learning Pr itu karena aktivitas MAC Learningnya"

Kenapa NOC berkata seperti itu? karena dia dapet info dari MSI like this :

MSI said, " di log ada flapping 1512929: May 13 09:40:01 WIB: %SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxc5.9b02 in vlan 900 is flapping between port Gi0/16+Efpx00 and port VP3".

Okey... lets see this..

xxx-ME3600-xxx#sh int des
Interface Status Protocol Description
---output ommited---
Gi0/16 admin down down Metro namacustomer Test

---output ommited---

Gi0/16 itu dalam kondisi down.. dan ... itu ga kekonect kemana-mana..

Lets see, what is the maksud of "NLFM Learn PR" based on

http://www.cisco.com/en/US/docs/switches/metro/me3600x_3800x/software/release/15.1_2_ey/release/notes/ol25360.html

CSCtr82351

ME3600 crash after ospf configuration.

Router crashes when trying to change OSFP area/multipath parameters. NLFM learning process causes CPU HOG and the router is forced to crash by watchdog.

Workaround: None.

Yuk, sekarang terjemahnya dalam bahasa Indonesia versi google translate adalah (dengan sedikit modifikasi biar terjemahnya ga terlalu aneh):

CSCtr82351

ME3600 crash saat mencoba mengganti OSPF area/ parameter multipath nya. NLFM learning process menyebabkan CPU HOG dan router dipaksa untuk melakukan hal tersebut oleh watchdog.
Solusi: Tidak ada.

CPU Process on ME3600 (NLFM Learn Pr)