Cisco 7604 Configuration Manual page 619

Appendix A Specifications
Table A-5
Specification
Inspection engine connections,
rate
IPSec management
connections, concurrent
ASDM management sessions,
concurrent
NAT translations (xlates),
concurrent
SSH management connections,
concurrent
System log messages, rate
TCP or UDP connections
between any two hosts,
including connections between
one host and multiple other
hosts, concurrent and rate
Telnet management
connections, concurrent
1. ASDM sessions use two HTTPS connections: one for monitoring that is always present, and one for making configuration
changes that is present only when you make changes. For example, the system limit of 80 ASDM sessions represents a limit
of 160 HTTPS connections.
2. The admin context can use up to 15 Telnet and SSH connections.
3. Embryonic connections are included in the total number of connections. If you configure an embryonic connection limit, then
embryonic connections above the limit are not counted.
4. The FWSM might take up to 500 ms to remove a connection that is marked for deletion. Because any traffic on the connection
is dropped during this period, you cannot initiate a new connection to the same destination using the same source and
destination ports until the connection is deleted. Although most TCP applications do not reuse the same ports in back-to-back
connections, RSH might reuse the same ports. If you use RSH or any other application that reuses the same ports in
back-to-back connections, the FWSM might drop packets.
5. Because PAT requires a separate translation for each connection, the effective limit of connections using PAT is the
translation limit (256 K), not the higher connection limit. To use the connection limit, you need to use NAT, which allows
multiple connections using the same translation session.
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
Managed System Resources (continued)
Context Mode
Single
10,000 per second
5
5
1
262,144
5
2
30,000 per second
for messages sent to
the FWSM terminal
or buffer
25,000 per second
for messages sent to
a syslog server
3 4
999,900
100,000 per second
5
2
Multiple
10,000 per second divided between all contexts
5 per context
Maximum of 10 divided between all contexts
Up to 5 per context
Maximum of 80 divided between all contexts
262,144 divided between all contexts
5 per context
Maximum of 100 divided between all contexts
30,000 per second divided between all contexts
for messages sent to the FWSM terminal or
buffer
25,000 per second divided between all contexts
for messages sent to a syslog server
5
999,900 divided between all contexts
100,000 per second divided between all
contexts
5 per context
Maximum of 100 connections divided between
all contexts.
Managed System Resources
5
A-5