cisco engine memory

如何查看Cisco Sup720的SP與RP的內存和FLASH狀態
首先Cisco 720引擎由SP（Switch Processor）和RP（Route Processor）組成，完整的引擎上會有3個
部分：一是最下面那塊大板（引擎），另一個是右邊的一塊子卡（PFC），最後是左邊的子卡
（MSFC），引擎和PFC合稱交換引擎（SP），MSFC稱路由引擎（RP）。
SP和RP是獨立的操作系統，所以各自有Flash和Memory。如上圖（圖片來源於Cisco官方文檔），
左邊的Flash和內存屬於SP，右邊的Flash和內存屬於RP。
另外，Flash有內置和外置之分。內置的叫bootflash，外置的在Sup1上叫Slot0:，從Sup2開始，Cisco
支持ATA格式的PCMCIA Flash，因此Sup2上會有Slot0:和Disk0:，如果是MEM格式的用Slot0:，如果
是ATA格式的用Disk0:，到Sup720，開始用CF卡，也就只支持ATA格式了。SP上的所有設備都會有個
sup-的前綴，所以sup-bootflash:就是SP上的Flash，sup-slot0:就是SP上的PCMCIA插槽。而RP上的Flash
則直接是bootflash。
注意：在從CatOS升級到IOS之後，原先引擎中的bootflash會被改名爲sup-bootflash，而原先MSFC
的bootflash會被認爲是升級後的引擎的bootflash。雖然如此，但6500/7600是不能通過MSFC的bootflash
上的IOS啓動的，而必須通過sup-bootflash中的IOS啓動。即，運行Native IOS時，IOS文件必須被放置
在sup-bootflash中，纔會啓動。放在bootflash是可以的，但無法啓動。
如果是運行CatOS 加MSFC 的IOS 時，SP（Swtich processer）作爲SUP 引擎的主控系統（運行
CatOS），MSFC作爲引擎的RP（Router Processer）子卡存在（運行IOS），在這種情況下CatOS文件和
IOS文件是相互獨立的兩個文件。
但Native IOS文件同時包含了RP部分和SP部分。所以如果是運行Native IOS，那麼引擎先從SP引導，
讀取IOS中SP的部分，加載成功後將控制轉到RP，進行RP部分的引導，但由於RP中的Flash是沒有
IOS的（放在裏面也不會被啓動），所以用TFTP的形式從SP下載IOS中的RP部分，引導完後，控制權
留在RP上，因此在啓動完成後的引擎上show version，可以發現IOS版本與flash中的文件稍有不同，會
有一個rp的字樣，這表示的RP部分，而切換到SP的Console後再show version則可以看到sp的字樣。
說明：通過命令remote command switch show version可以直接顯示SP 控制檯的show version命令。或
者執行remote command module x show version（其中x代表引擎的槽位號）也是一樣的。如果想直接登陸
到SP的控制檯，可以通過執行remote login switch，或者remote login module x（x代表引擎的槽位號）。
這些命令在升級SUP2的內存和FLASH時用於確定信息比較有用。
案例：
C7609#dir sup-bootflash:
Directory of sup-bootdisk:/
1 -rw- 83574340 May 28 2007 16:18:10 +08:00 s72033-adventerprisek9_wan-mz.122-18.SXF9.bin
512040960 bytes total (394903552 bytes free)
C7609#dir bootflash:
Directory of bootflash:/
1 -rwx 48420612 May 24 2007 20:23:24 +08:00 s72033-jk9o3sv-mz.122-18.SXD7b.bin
65536000 bytes total (16818096 bytes free)
由上面的顯示結果可知，sup-bootflash的大小爲512MB，bootflash的大小爲64MB。即，SP的flash大
小爲512MB，RP的flash大小爲64MB。
C7609#show version
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 16-May-07 22:48 by kellythw
Image text-base: 0x40101040, data-base: 0x42DB07F0
ROM: System Bootstrap, Version 12.2(17r)S4, RELEASE SOFTWARE (fc1)
BOOTLDR: s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9,
RELEASE SOFTWARE (fc1)
C7609 uptime is 36 weeks, 6 days, 1 hour, 42 minutes
Time since C7609 switched to active is 36 weeks, 6 days, 1 hour, 41 minutes
System returned to ROM by power cycle at 16:24:29 GMT Mon May 28 2007 (SP by power on)
System image file is "sup-bootdisk:s72033-adventerprisek9_wan-mz.122-18.SXF9.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
cisco CISCO7609 (R7000) processor (revision 1.2) with 458720K/65536K bytes of memory.
Processor board ID ******
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
SuperLAT software (copyright 1990 by Meridian Technology Corp).
X.25 software, Version 3.0.0.
Bridging software.
TN3270 Emulation software.
14 Virtual Ethernet/IEEE 802.3 interfaces
76 Gigabit Ethernet/IEEE 802.3 interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102
執行show version，從上面的輸出可以看到顯示的是RP 部分，帶有64MB 的flash 和512MB（由
458720K/65536K相加得到）的內存。
C7609#remote command switch show version
Cisco Internetwork Operating System Software
IOS (tm) s72033_sp Software (s72033_sp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 16-May-07 22:56 by kellythw
Image text-base: 0x40101040, data-base: 0x41465EE0
ROM: System Bootstrap, Version 8.4(2) Release
BOOTLDR: s72033_sp Software (s72033_sp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9,
RELEASE SOFTWARE (fc1)
C7609 uptime is 36 weeks, 6 days, 1 hour, 52 minutes
Time since C7609_2 switched to active is 36 weeks, 6 days, 2 hours, 4 minutes
System returned to ROM by power on
System image file is "bootdisk:s72033-adventerprisek9_wan-mz.122-18.SXF9.bin"
cisco Catalyst 6000 (R7000) processor with 458720K/65536K bytes of memory.
Processor board ID ******
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from power-on
X.25 software, Version 3.0.0.
76 Gigabit Ethernet/IEEE 802.3 interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
500472K bytes of Internal ATA PCMCIA card (Sector size 512 bytes).
Configuration register is 0x2102
執行remote command switch show version，從上面的輸出可以看到顯示的是SP部分，帶有512MB的
flash和512MB的內存。
登陸到SP：
C7609#remote login switch
Trying Switch ...
Entering CONSOLE for Switch
Type "^C^C^C" to end this session
C7609-sp#show version
Cisco Internetwork Operating System Software
IOS (tm) s72033_sp Software (s72033_sp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9, RELEASE
SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Wed 16-May-07 22:56 by kellythw
Image text-base: 0x40101040, data-base: 0x41465EE0
ROM: System Bootstrap, Version 8.4(2) Release
BOOTLDR: s72033_sp Software (s72033_sp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF9,
RELEASE SOFTWARE (fc1)
C7609_2 uptime is 36 weeks, 6 days, 1 hour, 56 minutes
Time since C7609_2 switched to active is 36 weeks, 6 days, 2 hours, 8 minutes
System returned to ROM by power on
System image file is "bootdisk:s72033-adventerprisek9_wan-mz.122-18.SXF9.bin"
cisco Catalyst 6000 (R7000) processor with 458720K/65536K bytes of memory.
Processor board ID ********
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from power-on
X.25 software, Version 3.0.0.
76 Gigabit Ethernet/IEEE 802.3 interfaces
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
500472K bytes of Internal ATA PCMCIA card (Sector size 512 bytes).
Configuration register is 0x2102
可以看到執行remote login switch就可以將控制檯從RP切換到SP。在SP下執行show version與在RP
下直接執行remote command switch show version的效果是一樣的。