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B+ raspbian (2015-05-05) kernel 3.18 interfaces

Pi 2015. 8. 18. 14:23

Raspberry PI B+, Raspbian 2015-05-05 (kernel 3.18)

default ifconfig & wlan0(NEXT mini) ,inote BT(CSR4.0)


 

pi@raspberrypi /etc/network $ cat /etc/network/interfaces

auto lo

iface lo inet loopback


auto eth0

allow-hotplug eth0

iface eth0 inet manual


auto wlan0

allow-hotplug wlan0

iface wlan0 inet manual

wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf


auto wlan1

allow-hotplug wlan1

iface wlan1 inet manual

wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf


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Raspberry Pi 사이트~

Embedded 2015. 5. 15. 16:09

*blog: 참고

http://blog.naver.com/lapint/220288575429

http://forum.makeblock.cc/t/simple-bending-car-with-servos/426

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outlook winmail.dat ?

Wins 2014. 5. 29. 16:50

Q. Outlook으로 첨부 메일 보내면, winmail.dat로 가는 경우?

-> http://support.microsoft.com/kb/138053

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wlan 전환 issue

Network 2014. 5. 29. 14:07

a ssid to b ssid

*정상:

*apfMsConnTask_0: May 29 12:41:59.459: 00:17:c3:83:e4:a2 Association received from mobile on AP 1c:1d:86:58:70:d0

*apfMsConnTask_0: May 29 12:41:59.459: 00:17:c3:83:e4:a2 Deleting client immediately since WLAN has changed

*apfMsConnTask_0: May 29 12:41:59.459: 00:17:c3:83:e4:a2 Scheduling deletion of Mobile Station:  (callerId: 50) in 1 seconds

*osapiBsnTimer: May 29 12:42:00.330: 00:17:c3:83:e4:a2 apfMsExpireCallback (apf_ms.c:609) Expiring Mobile!

*apfReceiveTask: May 29 12:42:00.330: 00:17:c3:83:e4:a2 apfMsExpireMobileStation (apf_ms.c:5021) Changing state for mobile 00:17:c3:83:e4:a2 on AP 1c:1d:86:58:70:d0 from Associated to Disassociated


*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 Sent Deauthenticate to mobile on BSSID 1c:1d:86:58:70:d0 slot 1(caller apf_ms.c:5113)

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 apfMsAssoStateDec

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 apfMsExpireMobileStation (apf_ms.c:5151) Changing state for mobile 00:17:c3:83:e4:a2 on AP 1c:1d:86:58:70:d0 from Disassociated to Idle


*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 pemApfDeleteMobileStation2: APF_MS_PEM_WAIT_L2_AUTH_COMPLETE = 0.

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 10.20.220.76 RUN (20) Deleted mobile LWAPP rule on AP [1c:1d:86:58:70:d0]

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 apfMsRunStateDec

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 apfMs1xStateDec

*apfReceiveTask: May 29 12:42:00.331: 00:17:c3:83:e4:a2 Deleting mobile on AP 1c:1d:86:58:70:d0(1) 

*pemReceiveTask: May 29 12:42:00.337: 00:17:c3:83:e4:a2 10.20.220.76 Removed NPU entry.


*비정상:

*apfMsConnTask_0: ~ Association received from mobile on AP ~

*apfMsConnTask_0: ~Deleting client immediately since WLAN has changed

*apfMsConnTask_0: ~Scheduling deletion of Mobile Station:  (callerId: 50) in 1 seconds

*apfMsConnTask_0: ~Ignoring 802.11 assoc request from mobile pending deletion

*apfMsConnTask_0: ~Sending Assoc Response to station on BSSID ~ (status 12) ApVapId 10 Slot 1

*apfMsConnTask_0: ~Ignoring 802.11 assoc request from mobile pending deletion

*apfMsConnTask_0: ~Sending Assoc Response to station on BSSID ~ (status 12) ApVapId 10 Slot 0

*osapiBsnTimer: ~apfMsExpireCallback (apf_ms.c:609) Expiring Mobile!


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etherchannel

Network 2014. 5. 28. 15:24

*MEC : Multichassis etherchannel

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fiber Optics...

Network 2014. 5. 28. 14:32

MMF: Multi-Mode Fibers

SMF: Single-Mode Fibers

ref: http://en.wikipedia.org/wiki/Optical_fiber

 http://en.wikipedia.org/wiki/Optical_fiber_cable


*magnitude:

850nm

1310nm

1550nm

ref: http://en.wikipedia.org/wiki/100_nanometres


*SFP/ GBIC

QSFP:Quad SFP, 4x10g or 

CXP:

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firmware upgrade (IOS...)

Network 2014. 5. 28. 14:22

IOS upgrade:

SSO (Stateful Switchover)

VSS (Virtual Switching System

ISSU (In-Service Software Upgrade)

eFSU (Enhacnced Fast Software Upgrade)


6500E, 6800X support eFSU

Enhanced Fast Software Upgrade (eFSU)

The Cisco Catalyst 6500E and 6800X Series support enhanced Fast Software Upgrade (eFSU). This increases network availability by reducing the downtime caused by software upgrades across two supervisor’s in a VSS pair. It brings the active and standby supervisors into synchronous Stateful Switchover (SSO) mode across two supervisor running two different software versions. It maintains an active data plane on both switches in the VSS pair, providing increased network availability during the upgrade process.

eFSU is a four-step process:

Step 1. issu loadversion: The new software image is loaded onto the standby supervisor on the VSS pair.

Step 2. issu runversion: The new software is loaded onto the standby supervisor engine while the active supervisor engine continues to operate with the previous software version. As part of the upgrade, the standby supervisor reaches the SSO hot standby stage, a switchover occurs, and the standby becomes active, running the new software version.

Step 3. You can continue with the upgrade to load the new software onto the other processor with “issu acceptversion,” or you can abort the upgrade and resume operation with the old software with “issu abortversion.”

Step 4. issu commitversion completes the process of eFSU by loading the new software version on the standby supervisor. For more details on eFSU, click here.

Figure 15. eFSU Steps

ref: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6800ia-switch/white_paper_c11-728265.html


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term_

etc 2014. 5. 28. 14:16

*

merchant silicon (off the shelf)

in house silicon

ref: http://etherealmind.com/analysis-merchant-custom-silicon/

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chrome  (0) 2014.05.28

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6500/6800 VSS IA

Network 2014. 5. 28. 10:46

* 6800 instant access

* ref: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6800ia-switch/white_paper_c11-728265.html

* 6800ia datasheet: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6800ia-switch/data_sheet_c78-728230.html


* Components used:

6500 Sup2T (VSS)

WS-X6904-40G

6800IA

C6500 VSS white paper: http://www.cisco.com/c/dam/en/us/products/collateral/interfaces-modules/network-modules/white_paper_c11_429338.pdf

40G ethernet on C6500 : How it Works :http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/white_paper_c11-696669.html


*IA interface naming

*IA interface Numbering


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chrome

etc 2014. 5. 28. 10:23

*chrom config:

chrome://chrom-urls

chrome://version

chrome://settings


*how to disable opening pdf in chrome

about:plugins or chrome://plugins

disable "chrome PDF viewer"


* chrome://settings/content

;popup, cookie


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