Information Technology Reference
In-Depth Information
Methods
To simulate BGP memory use, a Cisco 12012 and four network simulation tools are used.
The GSR is the device under test. It is running Cisco IOS software Release 12.0(15)S1. The
network simulation tool can simulate BGP and OSPF sessions. The test topology is shown
in Figure 2-7.
Figure 2-7
Test Network Topology
AS 65001
AS 65000
AS 65002
GSR
AS 65003
AS 65004
The GSR is running OSPF and BGP. The GRP has 128 MB of DRAM. Its version and
relevant configuration are shown in Examples 2-13 and 2-14.
Example 2-13
Output of
show version
GSR#show version
Cisco Internetwork Operating System Software
IOS (tm) GS Software (GSR-P-M), Version 12.0(15)S1, EARLY DEPLOYMENT RELEASE
SOFTWARE (fc1)
...GSR uptime is 1 hour, 8 minutes
...
cisco 12012/GRP (R5000) processor (revision 0x05) with 131072K bytes of memory.
...
1 eight-port FastEthernet/IEEE 802.3u controller (8 FastEthernet).
9 Ethernet/IEEE 802.3 interface(s)
507K bytes of non-volatile configuration memory.
Version 12.0(15)S1
131072K bytes of memory
20480K bytes of Flash PCMCIA card at slot 0 (Sector size 128K).
8192K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102
