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Table 11.
VoIP Performance: Maximum Number of Simultaneous Calls (not exceeding 75-percent platform CPU usage)
Standalone Unified Communications Router
No encryption
SRTP with signaling in
IPsec
SRTP with signaling
and media in IPsec
WAN Edge Gateway
No encryption
SRTP with signaling in
IPsec
SRTP with signaling
and media in IPsec
WAN Edge Gateway with Compressed Real-Time Protocol (CRTP)
No encryption
SRTP with signaling in
IPsec
SRTP with signaling
and media in IPsec
VoIP Performance: Maximum Number of Calls per Second (not exceeding 75-percent CPU)
Notes:
1.
All results represent G.729A or G.711 (20-ms packetization) switched H.323 calls with VAD turned off.
2.
The call success rate (CSR) of all tests is 98 to 100 percent.
3.
Call duration of tests is 180 seconds except for calls-per-second rate testing, where the duration is shorter.
The test release is Cisco IOS Software Release 12.4M. This document contains general numbers as a guide to the
approximate performance of the unified communications routers. The numbers are extrapolated from a large
number of disparate tests, test conditions, and traffic patterns. Several nontesting factors have also been
accounted for. Therefore, actual test results will vary, and we encourage you to do proof-of-concept testing for
more specific performance numbers for a specific scenario, traffic pattern, or release.
23
Gigabit Ethernet or Fast Ethernet egress; no QoS features; voice traffic only
24
T1/E1 or High-Speed Serial Interface (HSSI) serial egress; some QoS features; voice and small amount of data traffic
25
T1/E1 or HSSI serial egress; some QoS features; CRTP; voice and small amount of data traffic
© 2013 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.
CPU Performance on the Cisco Unified Communications Routers
Cisco 1751
Cisco 2610
and 1760
XM
23
32
32
-
24
-
12
24
32
18
-
14
-
8
24
12
-
10
-
5
0.1
0.1
*
Cisco 2620
Cisco 2650
XM
XM
38
50
30
40
16
22
20
35
16
29
9
16
25
16
24
14
20
7
10
0.25
0.5
Cisco 2691
Cisco 3725
130
180
106
155
60
85
100
140
82
120
47
65
82
102
69
90
39
48
2
1.5
Cisco 3745
290
250
135
220
190
102
170
140
77
4
Page 19 of 20
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