Cisco 10720 - Internet Router Installation And Configuration Manual page 29

Chapter 1 Product Overview
Cisco 10720 Internet Router Hardware Features
The Cisco 10720 Internet Router provides two dedicated card slots that are not interchangeable or hot
swappable. (See
access card.
•
•
The uplink card with only console and serial ports can be used with one of the Ethernet access cards to
customize the Cisco 10720 Internet Router as an Ethernet-only router.
Figure 1-2
1
The main processing board contains a central processing engine that consists of two sets of processors
that manage the control plane traffic and the data plane traffic.
•
•
The Cisco 10720 Internet Router can be deployed directly over fiber, thus allowing service providers to
offer IP plus optical access without the need for extensive SONET/Synchronous Digital Hierarchy
(SDH) optical transport infrastructure.
Additional overview information about the router can be located in the
Overview, which accompanies other marketing materials related to the Cisco 10720 Internet Router.
78-13062-10
Figure 1-2.) The upper slot contains an uplink card. The lower slot contains an Ethernet
The uplink card slot provides the following options:
– DPT or POS/DPT uplink card: one OC-48c/STM-16c DPT port or two POS optical ports with
an aggregate bandwidth of approximately 5 Gbps
– RPR/SRP uplink card: two OC-48 RPR/SRP (Resilient Packet Ring/Spatial Reuse Protocol)
ports that support small form-factor pluggable (SFP) modules, with an aggregate bandwidth of
approximately 5 Gbps
Console/auxiliary card: console and serial ports only
–
For more information about the uplink card, refer to the
Installation and Configuration
The Ethernet access card provides either Fast Ethernet or combined Fast Ethernet and Gigabit
Ethernet connectivity. For more information about the access card, refer to the Cisco 10720
Internet Router Access Card Installation and Configuration publication.
Uplink Card and Access Card
1
RE SE T
CO NS
OL E AU
X
DON NOT
OR INSE REM OVE
2 WITH THE RT CAB
POW ER
Uplink card
The Parallel eXpress Forwarding (PXF) network processors manage the data plane and support IP
forwarding as well as advanced QoS features.
The multiple processors in the PXF process packets simultaneously at the rate of approximately
2 Mpps.
publication.
AC OK
DC OK
OTF
AC OK
DC OK
OTF
LES
ON
INP UT 100
-200 - 50/6
0Hz 2-5A
2
Access card
Cisco 10720 Internet Router Installation and Configuration Guide
Physical and Functional Overview
Cisco 10720 Internet Router Uplink Cards
Cisco 10720 Internet Router
1-3