29 february ...

This is last day in this month. Everyone know the date just happen every 4 year. So why I'm not doing some usefull .. hmmm 'cause I'm ... so bored, all of day not doing usefull for my CCIE. I'm in the middle of going to CCIE, I mention it after I pass written in a few month ago, after that I can get schedule for lab. My activity in a few month later and may be until my next lab schedule: work in office, lab from my ibook in home or office sometime in outside place remote my private lab, hang out with my friend, reading UniverCD from my blacberry, repeat again repeat repeat again again ...

A few day ago, I contact someone from blog comment. He successful running well idlepc dynamips in PowerPC processor. He share binnary and path from Chris (red: someone coding dynamips). But I still failed in a few condition simulation, may be someday I will try again, now ... so bored.

Progress my lab still try a few workbook scenario lab and completely a few scenario technology lab but I'm not yet to repeat again. Just completely core lab of scenario not all of scenario.

Beside I using private lab for full workbook scenario, I use mini lab for test some technology and feature. Mini lab is 1 x Cisco 3725 Router, 1 x Cisco 2600 Router, 2 x Cisco Catalyst 3560. I design with a few of cable simulation of technology and feature of Router and Switch. I remote using TermServ with Cisco Router 2600 in separate lab. Actually I need 2 x Cisco Switch 3550 again for may mini lab, but still looking for it. in lab equipment CCIE RS use four Cisco series : 3725 router, 3825 router, catalyst 3550, catalyst 3560 with certain IOS version.

Back to today, 29 february ... there is no special day for me just the day happen one times in 4 year. This is the day just closing the month of february.

... so bored

storm-control broadcast

What is storm-control broadcast ? is there someone know what is the mean. This morning i see happen in my company network. There is router dan switch connected trunk, suddenly traffic from switch to router high almost full just one way traffic. From the switch there isn't who is generate this traffic. Check mac-address-table normal, spanning-tree ok, other trunk link in switch normal and etc. Finally i add 'storm-control broadcast level 10.00' in interface switch to router. Amazing .... just in a few second traffic be normal. hmmmm I don't know what happen is it :-s.

From cisco.com 'traffic storm control does not differentiate between control traffic and data traffic' :-?

Simple backup, Primary and Secondary Link

I have simple scenario dan test about backup simple backup using ppp encapsulation link and primary link using frame-relay link. For simulation use 'no frame-relay interface-dlci 513' disable frame-relay DLCI as though there is problem from frame-relay cloud.

'backup delay 60 300' : 60s for hold time backup operation, 300s for revert time to normal operation

#Primary Link

interface Serial1/0.1 point-to-point
 ip address 132.1.35.5 255.255.255.0
 backup delay 60 300
 backup interface Serial1/1
 frame-relay interface-dlci 513   
end

#Secondary Link

interface Serial1/1
 ip address 132.1.45.5 255.255.255.0
 encapsulation ppp
 ppp authentication chap
 ppp chap hostname ROUTER5
 
#(config-subif)#no frame inter 513

#(config-subif)#
*Mar  2 10:07:24.663: BACKUP(Serial1/0.1): event = primary interface went down
*Mar  2 10:07:24.663: BACKUP(Serial1/0.1): changed state to "waiting to backup"

#(config-subif)#
*Mar  2 10:08:24.663: BACKUP(Serial1/0.1): event = timer expired on primary
#(config-subif)#
*Mar  2 10:08:27.679: BACKUP(Serial1/0.1): secondary interface (Serial1/1) made active
*Mar  2 10:08:27.683: BACKUP(Serial1/0.1): changed state to "backup mode"
*Mar  2 10:08:27.683: %LINK-3-UPDOWN: Interface Serial1/1, changed state to up
#(config-subif)#
*Mar  2 10:08:27.683: BACKUP(Serial1/1): event = secondary interface came up
#(config-subif)#
*Mar  2 10:08:30.683: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to up

#(config-subif)#frame inter 513   
#(config-fr-dlci)#
*Mar  2 10:11:54.383: BACKUP(Serial1/0.1): event = primary interface came up
*Mar  2 10:11:54.387: BACKUP(Serial1/0.1): changed state to "waiting to revert"

#(config-fr-dlci)#do sh backup
Primary Interface   Secondary Interface   Status
-----------------   -------------------   ------
Serial1/0.1         Serial1/1             waiting to revert (260 more seconds)

#(config-fr-dlci)#
*Mar  2 10:16:54.387: BACKUP(Serial1/0.1): event = timer expired on primary
*Mar  2 10:16:54.419: BACKUP(Serial1/0.1): secondary interface (Serial1/1) moved to standby
*Mar  2 10:16:54.423: BACKUP(Serial1/0.1): changed state to "normal operation"
#(config-fr-dlci)#
*Mar  2 10:16:56.391: %LINK-5-CHANGED: Interface Serial1/1, changed state to standby mode
*Mar  2 10:16:57.391: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/1, changed state to down
*Mar  2 10:16:57.395: BACKUP(Serial1/1): event = secondary interface went down

#(config-fr-dlci)#do sh backup  
Primary Interface   Secondary Interface   Status
-----------------   -------------------   ------
Serial1/0.1         Serial1/1             normal operation