Cisco Systems MGX 8220 manual

Appendix C Firmware Upgrade and Downgrade Procedures

Description of Upgrade/Downgrade Terminology

Standard

A standard upgrade/downgrade technique is the simplest and fastest method for upgrading/downgrading between a pair of firmware and/or backup boot code releases. A standard technique trades traffic loss for simplicity and speed.

Graceful

A graceful upgrade/downgrade technique attempts to minimize traffic loss at the expense of added complexity and time. For example, the service module graceful upgrade from Release 3.x to Release 3.y for a shelf with a 9:1 redundancy group requires 18 resetcd operations and can take 20 minutes. The average traffic loss per connection approximately 20 seconds. The service module standard upgrade from Release 3.x to Release 3.y requires only a single resetsys command and can take 60 seconds, but the average traffic loss per connection can be over a minute.

One-cc

1-core card set (MGX 8220 shelf controller [ASC] broadband network module [BNM] [SRM]).

Two-cc

2-core card sets (ASC BNM [SRM]).

chkflash

The MGX 8220 ASC and service module CLI command, chkflash, calculates and compares the Flash checksum. In some releases, the chkflash command reports the firmware or backup boot code version as it resides in Flash. In this case, the version reported by the chkflash command should be compared with the version of firmware or backup boot code which was TFTP-put.

Example: shelf.1.<slot>.<type>.<as>chkflash

Version

The MGX 8220 ASC and service module (SM) CLI command, version, displays the backup boot code version that is currently stored in Flash (not necessarily the version of backup boot code that is running) and the firmware version that is running.

Example: shelf.1.<slot>.<type>.<as>version

	Cisco MGX 8220 Installation and Configuration
C-42	Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003

MGX 8220 specifications

The Cisco Systems MGX 8220 is a versatile, high-performance media gateway that has become an integral component in the telecommunications infrastructure. Designed to facilitate the transition from traditional circuit-switched networks to advanced packet-switched environments, the MGX 8220 supports a wide array of voice, video, and data services, making it an essential tool for service providers and enterprises seeking to enhance their network capabilities.

One of the key features of the MGX 8220 is its robust signaling and media processing capabilities. Equipped with support for both Voice over IP (VoIP) and traditional telephony protocols, this gateway enables seamless integration of different communication formats. It boasts a modular architecture, which allows for the addition or removal of various line cards to meet changing demands and technology advancements. This modularity provides operators with the flexibility to scale their services without significant overhauls to their existing infrastructure.

The MGX 8220 is capable of delivering high-density media handling for a multitude of services. With its support for ATM and IP networks, the gateway can handle TDM (Time-Division Multiplexing) to packet voice conversions efficiently. It is designed to optimize network resources by dynamically allocating bandwidth based on traffic requirements, thus ensuring efficient use of network resources and improved performance.

Another significant characteristic of the MGX 8220 is its enhanced quality of service (QoS) features. This capability ensures that voice and video traffic is prioritized appropriately, minimizing latency and jitter while maximizing overall call quality. By employing sophisticated traffic management techniques, the MGX 8220 can deliver a superior user experience, which is critical for any service provider aiming to offer competitive communication solutions.

Furthermore, the gateway includes built-in security features to protect against unauthorized access and ensure the integrity of sensitive data. This includes encryption for voice and video transmission, as well as support for secure signaling protocols.

Overall, the Cisco Systems MGX 8220 stands out as a comprehensive media gateway solution, providing essential functionalities for modern communication needs. Its combination of modularity, high-density processing, effective QoS management, and security features makes it a compelling choice for organizations looking to modernize their telecommunications infrastructure while ensuring reliability and performance. As businesses continue to evolve and demand more from their networks, the MGX 8220 offers a pathway to future-ready communications.

Cisco Systems MGX 8220 manual Description of Upgrade/Downgrade Terminology

Models: MGX 8220