Memory Guidelines For The Ip Switch Control Board; Memory Configuration - IBM 9077 Get Connected

Additionally, the RS232 port (which is not shown in the figure) allows you to
connect the VT100 console by using an RS232 null modem cable. The
console and cable must be supplied by the user.

2.3.4 Memory Guidelines for the IP Switch Control Board

As already mentioned, the GRF base system comes with 128 MB of memory.
In all GRF memory configurations, 32 MB are used for the file system and the
remainder is used for system operations. For example, in the base system,
there are 128 MB of total memory, 32 MB of available memory and 78 MB of
usable memory. (Refer to Table 1 on page 35 for detailed memory
configuration information). Up to six additional 32 MB DRAM SIMMS may be
added to support larger dynamic routing tables and larger numbers of peers
(for a total of 256 MB, 204 MB usable).
The following table provides guidelines for memory configuration. All media
cards can hold up to 150 KB route entries. The control board, depending on
memory configuration, can hold 35,805 to 521,730 route prefixes. Select the
amount of memory according to your routing environment. Additional memory
may be required for higher average numbers of routes per BGP peer.
Table 1. Memory Configuration
Customer
Profile
Static Routing
Small POP
Medium POP/
ISP Backbone
Large POP/
Exchange Point/
Route
Server
Figure 18 gives an overview of the memory layout and the possible memory
extensions.
Total Avail.
Mem.
64 MB 32 MB
128 MB 96 MB
192 MB 160 MB
256 MB 224 MB
Reflection
Usable No. of No. of
Route Route
Entries Prefixes
on in
Media Dynamic
Cards Database
14 MB 150 KB 35805
78 MB 150 KB 199485
142 MB 150 KB 362165
204 MB 150 KB 521730
No. of
Peer
Sess.
0
3
7
10
35
Router Node