Description
Management of Network Bandwidth
The Cisco ASR-920U-12SZ-IM router supports several features that can be used to manage network bandwidth.
One of the main features is Quality of Service (QoS), which allows administrators to assign different levels of priority to different types of traffic. This can be used to ensure that critical traffic, such as voice and video, is given priority over less critical traffic, such as email and web browsing. QoS can be configured using the Cisco IOS XE command-line interface (CLI) or Cisco Network Assistant (CNA) web-based management tool.
Another feature that can be used to manage network bandwidth is traffic shaping. Traffic shaping allows administrators to control the rate at which traffic is transmitted on a specific interface. This can be used to ensure that bandwidth-intensive applications do not consume too much bandwidth, causing other traffic to be delayed.
The router also supports Class-Based Queueing (CBQ) which allows to classify traffic and assign different queues to different traffic classes. This can be used to ensure that critical traffic is given priority over less critical traffic.
Additionally, the router also supports Committed Access Rate (CAR) which allows to define a committed rate for each interface, making sure that the traffic rate does not exceed the defined rate and avoiding congestion on the network.
Advanced Routing Protocols
The Cisco ASR920 Series 1 IM Slot Router (ASR-920U-12SZ-IM) supports several advanced routing protocols that are designed to improve the efficiency and accuracy of data packet routing in a network.
- Border Gateway Protocol (BGP): BGP is a routing protocol that is used to exchange routing information between routers in different autonomous systems (AS). BGP is commonly used in service provider networks to connect multiple customer networks.
- Open Shortest Path First (OSPF): OSPF is a link-state routing protocol that is used to distribute routing information within a single autonomous system. OSPF calculates the shortest path to a destination using a link-state database, which is shared among all routers in the autonomous system.
- Enhanced Interior Gateway Routing Protocol (EIGRP): EIGRP is a Cisco proprietary routing protocol that is similar to OSPF. EIGRP uses both distance-vector and link-state algorithms to determine the best path to a destination.
- Routing Information Protocol (RIP) :RIP is a distance-vector routing protocol that is used to distribute routing information within a single autonomous system. RIP uses hop count as the metric to determine the best path to a destination.
The ASR-920U-12SZ-IM also supports Quality of Service (QoS) features that allow network administrators to prioritize and manage network traffic. This feature is useful for ensuring that critical network traffic, such as VoIP or video streaming, is given priority over less critical traffic, such as file transfers.
Troubleshooting and Maintenance
Troubleshooting and maintenance of the Cisco ASR920 Series 1 IM Slot Router (ASR-920U-12SZ-IM) involve several steps and tools to ensure the smooth operation of the router and network.
- Monitoring the router’s status and performance: The Cisco IOS Software provides various commands and tools such as show commands and Simple Network Management Protocol (SNMP) to monitor the status and performance of the router.
- Error and Event Logging: The router also provides logging feature that can be configured to record system messages and events, these log can be viewed locally or remotely to detect and troubleshoot issues.
- Firmware Upgrade: Keeping the router’s firmware up to date can fix known bugs and improve the router’s performance. The Cisco IOS Software Upgrade feature allows network administrators to upgrade the router’s firmware.
- Backing up and restoring the router’s configuration: Regularly backing up the router’s configuration can be useful in case the router’s configuration is lost or corrupted. The Cisco IOS Software provides the capability to backup and restore the router’s configuration.
- Physical maintenance: Regularly inspecting and cleaning the router’s physical components can help to prevent issues caused by dust or other debris. This includes checking for proper ventilation, inspecting the power supply and cables, and cleaning the router’s chassis.
- Scheduling regular maintenance: Regularly scheduled maintenance can help to prevent issues from occurring and can also be used to perform routine tasks such as backups and firmware upgrades.
It is always recommended to have a proper maintenance plan in place and to have a thorough understanding of the Cisco IOS Software and the router’s hardware before attempting to troubleshoot or perform maintenance on the router.
General Information
- Manufacturer Cisco Systems, Inc
- Manufacturer Part Number : ASR-920U-12SZ-IM
- Brand Name : Cisco
Features
- Cisco ASR920 Series – 12GE and 4-10GE, 1 IM slot.
Networking
- Form Factor :Rack-mountable
- Connectivity Technology :Wired
- Data Link Protocol :Gigabit Ethernet, 10 Gigabit Ethernet
- Features :Fan tray, Front to back airflow
Expansion Slots
- Expansion Slots :1 (total) / 1 (free) x expansion slot
Interface Provided
- Interfaces :USB: 1 x 4 pin USB Type A, Management: 1 x, USB: 1 x console – 4 pin USB Type A, 4 x 1000Base-X – SFP (mini-GBIC), 1 x auxiliary, 8 x 1000Base-T (PoE) – RJ-45, 4 x 10GBase-X – SFP+
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