Cisco Cisco IOS Software Release 15.0(1)M 情報ガイド
Q&A
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Cisco IOS Software Release 15M&T Q&A
Last updated: July, 2010
General
Q.
What is Cisco IOS Software Release 15M&T?
A.
Developed for wide deployment in the world's most demanding Enterprise, Access, and Service Provider
Aggregation networks, Cisco IOS Software Release 15M&T provides a comprehensive portfolio of over 2000
capabilities, including the leading-edge functionality and hardware support previously delivered in Releases 12.4
and 12.4T (see Note below), anchored by an intensive stability and testing program.
Q.
What are the benefits of Release 15M&T over Releases 12.4 Mainline and 12.4T?
A.
Release 15M&T provides:
●
Predictable new feature release (approximately 3 times a year) and maintenance rebuild schedules
●
Broadened operational consistency for features
●
Proactive support policies
●
Enhanced release numbering
●
Clearer software deployment and migration guidelines.
Key highlights of Release 15M&T, illustrated in Figure 1 below, include the following:
●
Approximately 3 new feature releases per year.
●
15 M (Extended Maintenance) releases delivered on a more frequent basis (approximately every 16 months),
enabling customers to qualify, deploy, and remain on a release longer with active support.
●
15 T (Standard Maintenance) releases (in between 15 M releases) ideal for the very latest features and
hardware support before the next 15 M release becomes available.
●
Rebuilds of 15M&T releases for bug fixes and ongoing software maintenance (no new features delivered in
rebuilds).
●
Release 15.0(1)M (FCS November, 2009) is the first 15 M release.
●
Release 15.1(1)T (FCS March, 2010) is the first 15 T release.
Note: AppleTalk Phase I and II, and Service Selection Gateway (SSG) feature are not supported in Release
15M&T. Refer to the following bulletins for more information:
15M&T. Refer to the following bulletins for more information:
AppleTalk Support Discontinuation:
SSG Support Discontinuation: