Nortel 1004 Secure Router SR2101A030E5 User Manual
Product codes
SR2101A030E5
2
Test configuration
Within a sophisticated lab environment,
a Nortel Secure Router 1004 and a
Secure Router 3120 were configured to
simulate a typical branch office connec-
tion. The routers were connected via
dual-T1 cross-over cables and config-
ured as a Multi-Link-PPP WAN bundle.
One Ethernet port from each Secure
Router was connected to an Ethernet
Switch. All Ethernet connections were
fixed at 100 Mbps/Full-Duplex.
a Nortel Secure Router 1004 and a
Secure Router 3120 were configured to
simulate a typical branch office connec-
tion. The routers were connected via
dual-T1 cross-over cables and config-
ured as a Multi-Link-PPP WAN bundle.
One Ethernet port from each Secure
Router was connected to an Ethernet
Switch. All Ethernet connections were
fixed at 100 Mbps/Full-Duplex.
Quality of Service (QoS) was configured
on the WAN link to prioritize voice
traffic. Various levels of simulated voice
and data traffic were transmitted through
the test network, and results recorded.
In subsequent scenarios, additional serv-
ices — including filters, encryption and
firewall — were added to the connection.
on the WAN link to prioritize voice
traffic. Various levels of simulated voice
and data traffic were transmitted through
the test network, and results recorded.
In subsequent scenarios, additional serv-
ices — including filters, encryption and
firewall — were added to the connection.
Establishing a solid baseline
To set a baseline for testing, a mix of
VoIP and data traffic was transmitted
over the WAN link between Secure
Routers — without any services enabled.
VoIP traffic consisted of a range of 20,
25 or 30 simulated VoIP calls (or pairs),
along with varying data traffic loads. In
all cases, QoS was enabled on the Secure
Routers to ensure that higher-priority
VoIP traffic was transmitted ahead of
lower-priority data traffic.
VoIP and data traffic was transmitted
over the WAN link between Secure
Routers — without any services enabled.
VoIP traffic consisted of a range of 20,
25 or 30 simulated VoIP calls (or pairs),
along with varying data traffic loads. In
all cases, QoS was enabled on the Secure
Routers to ensure that higher-priority
VoIP traffic was transmitted ahead of
lower-priority data traffic.
In all cases, MOS scores in the 4.4
range were achieved for all VoIP calls.
Figure 2 shows representative test results
for an oversubscribed WAN link where
traffic was varied from 100 to 184
percent of total WAN bandwidth.
Despite the load, MOS scores in the 4.4
range were achieved, along with WAN
utilization at 98 to 100 percent of WAN
bandwidth.
range were achieved for all VoIP calls.
Figure 2 shows representative test results
for an oversubscribed WAN link where
traffic was varied from 100 to 184
percent of total WAN bandwidth.
Despite the load, MOS scores in the 4.4
range were achieved, along with WAN
utilization at 98 to 100 percent of WAN
bandwidth.
Figure 1. Nortel Secure Router 1004 and Secure Router 3120 test network setup
Figure 2. Baseline test (no services) with WAN/data oversubscription
Nortel Secure Router 3120 —
A modular system that converges
routing, security and multimedia
traffic forwarding in a single, cost-
effective platform. Delivering fast,
secure, reliable and scalable wide
area network (WAN) access, this
powerful router is perfect for
enterprises requiring high-speed
IP or Internet access.
Nortel Secure Router 1004 —
A scalable router that provides
high-performance WAN access for
enterprise branch offices and
remote sites. The versatile Secure
Router 1004 platform offers a
single T1 or E1 port, plus the
ability to upgrade to four-port
(T1/E1) capacity.