Hi

we are using the two 4948 switch with two different IOS

existing one is cat4000-i9k91s-mz.122-25.EWA14.bin

but for OSPF and BGP we upgraded the IOS to cat4500-entservicesk9-mz.122-31.SG3.bin

now what is my worry is

for two IOS ther is some different Config registry

System image file is "bootflash:cat4500-entservicesk9-mz.122-31.SG3.bin"

cisco WS-C4948-10GE (MPC8540) processor (revision 5) with 262144K bytes of memory.

Processor board ID FOX1223GBKY

MPC8540 CPU at 667Mhz, Fixed Module

Last reset from Reload

10 Virtual Ethernet interfaces

48 Gigabit Ethernet interfaces

2 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

Configuration register is 0x102

-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time--------- name

1 .. image 7EFB1824 C971CC 34 12939596 Jul 2 2008 14:55:17 +00:00 cat4000-i9k91s-mz.122-25.EWA14.bin

2 .. image 933B2DB1 1973BCC 39 13486464 Jun 24 2009 01:41:28 +00:00 cat4500-entservicesk9-mz.122-31.SG3.bin

34915380 bytes available (26426316 bytes used)

------------------------------------------

System image file is "bootflash:cat4000-i9k91s-mz.122-25.EWA14.bin"

Cisco WS-C4948-10GE (MPC8540) processor (revision 5) with 262144K bytes of memory.

Processor board ID FOX1224H08L

MPC8540 CPU at 667Mhz, Fixed Module

Last reset from PowerUp

5 Virtual Ethernet interfaces

48 Gigabit Ethernet interfaces

2 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

Configuration register is 0x2101

-#- ED ----type---- --crc--- -seek-- nlen -length- ---------date/time--------- name

1 .. image 7EFB1824 C971CC 34 12939596 Jul 2 2008 13:29:22 +00:00 cat4000-i9k91s-mz.122-

25.EWA14.bin

48401972 bytes available (12939724 bytes used)

why they are different can u suggest some one