Cisco ASR-920-12SZ-IM Manuale utente
Getting Started With the Cisco ASR 920 Series
Router
This chapter covers the following topics:
•Overview, page 1
•Restrictions, page 3
•Interface Naming, page 4
Overview
Cisco ASR 920 family of routers include:
•ASR 920-I (Indoor) [ASR-920-12CZ-A/ASR-920-12CZ-D]—This sub-family has fixed ENET interfaces
(12 x 1 GE + 2 x 10GE) and dual power supplies (AC/DC).
•ASR 920-C (Compact) [ASR-920-4SZ-A/ASR-920-4SZ-D]—This sub-family of routers have a compact
form factor and configurable ports: 4 x 1 GE or 4 x 10 GE or any combinations of 1 GE and 10 GE
among the four ports available. In addition, there are 2 x 1 GE copper ports available.
•ASR 920-O (Outdoor) [ASR-920-10SZ-PD]—This sub-family is designed for deployment outdoors in
an environment protected from rain and direct sunlight and provides cost optimized, and extended
temperature range for business, residential, and mobile access services.
•ASR 920-F (Fixed) [ASR-920-24SZ-M/ASR-920-24TZ-M]—This sub-family with 1 RU form factor
has fixed ENET interfaces (four 10GE and twenty-four 1GE Copper or SFP) and redundant modular
power supplies (AC/DC).
•ASR 920-M (Modular) [ASR-920-24SZ-IM]—This sub-family with 1.5 RU form factor has fixed ENET
interfaces (four 10GE and twenty-four 1GE Fiber), one modular interface and redundant modular power
supplies (AC/DC). The interface modules from ASR 900 family of routers can be leveraged for use with
this model.
•ASR-920-12SZ-IM—Eight 1G copper ports, four SFP ports, and four 1G/10G Dual Rate ports one IM
slot Power over Ethernet (PoE), and a global navigation satellite system (GNSS) port, with redundant
AC or DC power supplies
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
1
In addition to the 1G/10G interfaces, the Cisco ASR 920 Series Routers also have the following hardware
interfaces for management, and timing and synchronization features:
•One Copper 10/100/1000Base-T LAN management port
•One BITS interface with RJ48 Connector
•One 1PPS or Time of Day port with RJ45 interface
•External Alarm interface with 4 Dry Contact Alarm inputs
•One RS-232 Console Port with USB A type connector
Due to the USB form factor, the flow control pins are not connected and the terminal server hosting the
RS232 session must configure no flow-control or the console access to work correctly.
Note
•One USB2.0 Console Port
•One USB2.0 Port for Mass Storage
•ZTP button for Zero Touch Provisioning
A short press of the ZTP button starts the provisioning of the router. Pressing this button for 8 seconds or
more leads to Powering off the System Power.
Caution
•Various LEDs for system and interface status
•The Cisco ASR-920-12SZ-IM Router also supports:
◦Power over Ethernet (PoE) port
◦Global navigation satellite system (GNSS) port
For more information, see the various Cisco ASR920 Series Routers hardware installation guides at http://
www.cisco.com/c/en/us/support/routers/asr-920-series-aggregation-services-router/
products-installation-guides-list.html.
All variants of the Cisco ASR 920 Series Router have 8MB of NOR flash, and 4GB of DRAM.
Table 1: Feature Comparison for Cisco ASR 920 Series Routers
ASR-920-12SZ-IMASR-920-24SZ-IMASR-920-24TZ-MASR-920-24SZ-MASR-920-10SZ-PDASR-920-4SZ-A/DASR-920-12CZ-A/DFeature/Functionality
T1042—1.2GHzP2020—1.2GHzP2020—1.2GHzP2020—1.2GHzP2020—1GHzP2020—1GHzP2020—1GHz
CPU
operating at
4GB4GB4GB4GB4GB4GB4GBDRAM
4GB2GB2GB2GB2GB2GB2GBSD FLASH
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
2
Getting Started With the Cisco ASR 920 Series Router
Overview
ASR-920-12SZ-IMASR-920-24SZ-IMASR-920-24TZ-MASR-920-24SZ-MASR-920-10SZ-PDASR-920-4SZ-A/DASR-920-12CZ-A/DFeature/Functionality
SupportedNot
Supported
Not
Supported
Not
Supported
SupportedSupportedSupported1G-10G
Dual Rate
Ports
Not PresentPresentNot PresentNot PresentNot PresentPresentPresentBITS
interface
PresentPresentNot PresentNot PresentNot PresentPresentPresentTime of
Day port
Not
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
SupportedAuto-Media-Select
Combo Port
SupportedSupportedSupportedNot
Supported
SupportedSupportedSupportedCopper
Ports
SupportedSupportedNot
Supported
SupportedSupportedSupportedSupportedSFP Ports
Not
Supported
Not
Supported
Not
Supported
Not
Supported
SupportedSupportedSupportedSmart SFP
SupportedSupportedSupportedSupportedSupportedSupportedSupportedSFP+ Ports
SupportedSupportedNot
Supported
SupportedSupportedSupportedSupportedCopper SFP
SupportedSupportedNot
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
XFP Ports
SupportedNot
Supported
Not
Supported
Not
Supported
SupportedSupportedSupportedZTP Button
SupportedNot
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
PoE
SupportedNot
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
Not
Supported
GNSS
Restrictions
The Cisco ASR 920 Series Routers do not support the hw-module slot/subslot reload command.
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
3
Getting Started With the Cisco ASR 920 Series Router
Restrictions
Interface Naming
The following table shows the interface naming of the Cisco ASR-920-12CZ-A/ASR-920-12CZ-D ports:
10G
SFP+/1G
SFP1
1G Combo Port1G SFP
Only
13119751197531
12108641086420
1Ports 12 and 13 when operating in 1G Mode will become operationally up only when the peer connecting interfaces are in Auto negotiation mode.
•Interfaces 0–3 are GigabitEthernet SFP only ports.
•Interfaces 4–11 GigabitEthernet are combo ports that support dual media—Copper and SFP. For more
information, see the Configuring Auto Media Sense on Cisco ASR 920 Series Routers.
•Interfaces 0 through 11 are referred to as GigabitEthernet 0/0/0–GigabitEthernet 0/0/11 respectively
•Interfaces 12 and 13 are dual rate ports. These ports support 1G or 10G mode depending on the optics
(SFP or SFP+ respectively) installed in these ports.
Dual-Rate functionality is supported only with the Supported SFPs, listed in the Cisco ASR 920 Series
Aggregation Services Router Hardware Installation Guide .
Note
•Interfaces 12 and 13 are TenGigibitEthernet 0/0/12–TenGigabitEthernet 0/0/13. The interface name
remains unchanged even if an SFP is installed in the port and the port is operating in 1G mode.
•Out of Band Management Network port is refereed as interface Gig0.
The following table shows the interface naming of the Cisco ASR920-4SZ-A/ASR920-4SZ-D ports:
10G SFP+/1GSFP2
1G Cu Port
531
420
2Ports 2, 3, 4, and 5 when operating in 1G Mode will become operationally up only when the peer connecting interfaces are in Auto negotiation mode.
•Interfaces 0–1 are Copper only ports with RJ45 connector.
•Interfaces 0 and 1are referred to as GigabitEthernet 0/0/0–GigabitEthernet 0/0/1 respectively.
•Interfaces 2 through 5 are dual rate ports. These ports support 1G or 10G mode depending on the optics
(SFP or SFP+ respectively) installed in these ports.
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
4
Getting Started With the Cisco ASR 920 Series Router
Interface Naming
Dual-Rate functionality is supported only with the Supported SFPs, listed in the Cisco ASR 920 Series
Aggregation Services Router Hardware Installation Guide .
Note
•Interfaces 2 through 5 are named as TenGigibitEthernet 0/0/2–TenGigabitEthernet 0/0/5 respectively.
The interface name remains unchanged even if an SFP is installed in the port and the port is operating
in 1G mode.
•Out of Band Management Network port is referred as interface Gig0.
The following table shows the interface naming of the Cisco ASR-920-10SZ-PD ports:
10G SFP+1G SFP1G Cu
----------1
1110987654320
•Interfaces 0–1 are Copper only ports with RJ45 connector.
•Interfaces 2-9 are GigabitEthernet SFP ports.
•Interfaces 10-11 are 10 GigabitEthernet SFP+ ports that support 10G mode.
The following table shows the interface naming of the Cisco ASR-920-24SZ-IM, Cisco ASR-920-24SZ-M,
ASR-920-24TZ-M ports:
IM Slots (for Cisco ASR-920-24SZ-IM only)
10G SFP+1G SFP/Cu3
21191715131197531
20181614121086420
3Ports 0 -23 are Copper ports for ASR-920-24TZ-M
•Interfaces 0–23 are GigabitEthernet SFP ports for ASR-920-24SZ-IM, ASR-920-24SZ-M and Copper
port for ASR-920-24TZ-M.
•Interfaces 24-27 are 10 GigabitEthernet SFP+ ports that support 10G mode.
The following table shows the interface naming of the Cisco ASR-920-12SZ-IM:
1G Cu1G SFP10G/1G SFP
1357
——
024689101112131415
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
5
Getting Started With the Cisco ASR 920 Series Router
Interface Naming
Interface Speed Based on Port Type
SFP+SFP ports (With Copper SFP
plugged in)
SFP ports (With Fiber SFP
plugged in)
Cu Ports
10G1G100M10M1G100M10M1G100M10MSpeed
NAYesYesYesYesYesNot
Supported
YesYesYes1G
Copper
/SFP
ports
YesYesNot
Supported
Not
Supported
YesNANANANANA10G
Dual
rate
ports
Cisco ASR 920 Series Aggregation Services Router Configuration Guide
6
Getting Started With the Cisco ASR 920 Series Router
Interface Speed Based on Port Type
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