Cisco ASR 900 Series Bedienungsanleitung PDF herunterladen (Seite 4)

Route Switch Processor

The Cisco ASR 900 Route Switch Processor (RSP1) is the centralized card in the system performing the data

plane, network timing, and control plane functions for the system. This card contains separate control plane and

data plane components. The main packet processing and traffic management is performed by the Cisco Carrier

Ethernet ASIC. The RSP also contains the main control plane CPU for the Cisco IOS

XE operating system and

platform control software.

Two RSP slots are provided in the Cisco ASR 903 Router for optional inter-chassis redundancy. With two RSPs

inserted in the Cisco ASR 903 Router, one RSP operates in active mode and the other RSP operates in hot standby

mode. The RSP is a field replaceable unit (FRU) and can be online inserted and removed (OIR) while the system is

operating. The removal or failure of the active RSP results in the automatic switchover to the standby RSP.

There are two versions of the RSP, which provide the same capabilities and throughput, while differing in service

scale. These differences are described in Table 7.

Interface Module

The Cisco ASR 903 Router has six interface module slots. There are two types of interface module slots. Four

slots support all of the available interface modules. The remaining two slots support only the Gigabit Ethernet and

TDM Interface modules, the 10 Gigabit Ethernet modules are not supported in these slots. One of these two slots

is limited to a maximum of seven Gigabit Ethernet ports with the Cisco ASR 900 Route Switch Processor (RSP1).

Ethernet Interface Modules

There are three Cisco ASR900 Ethernet interface modules:

●

Cisco ASR 900 Series 1-Port 10GE XFP Interface Module, this module supports a single 10-Gigabit

Ethernet Small Form-Factor Pluggable (XFP) port.

●

Cisco ASR 900 Series 8-Port Copper Gigabit Ethernet Interface Module, this module supports eight Copper

RJ-45 Gigabit Ethernet ports.

●

Cisco ASR 900 Series 8-Port SFP Gigabit Ethernet Interface Module, this module supports eight Gigabit

Ethernet Small Form-Factor Pluggable (SFP)ports.

All of the Ethernet ports will only operate in non-oversubscribed mode. The SFP and XFP pluggables are hot

swappable, and are listed in Table 2.

Legacy Interface Modules

The Cisco ASR 903 Router supports two TDM interface modules:

●

Cisco ASR 900 Series 16-Port T1/E1 Interface Module, this module supports 16 T1 or E1 ports.

●

Cisco ASR 900 Series 4-Port OC3/STM-1 or 1-Port OC12/STM-4 Interface Module, this combo module

supports one of four modes: 4xOC3, 4xSTM-1, 1xOC12, and 1xSTM-4. If the module is configured for

4xOC3 or 4xSTM-1, then the individual interfaces can be configured to be clear-channel, POS, or

channelized. 4xOC3/4xSTM-1/1xOC12/1xSTM-4 Interface Module

The T1/E1 Interface Module has a single high-density connector on the module. This high-density connector

requires a single cable to connect to an external breakout patch-panel for connectivity to the individual T1/E1

ports.

The TDM interface modules support the Any Service Any Port (ASAP) concept, including Asynchronous Transfer

Mode (ATM) and circuit emulation functionality.

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