Overview
Cisco IOS® Software release 15.0 is the next IOS release following the Cisco IOS 12.4(24)T release. Created for wide deployment in the world's most demanding Enterprise, Access, and Service Provider networks, Cisco IOS Software Release 15.0 will provide a comprehensive portfolio of Cisco technologies, functionality and hardware support from Releases 12.4 and 12.4T, anchored by an intensive stability and testing program. Key innovations span multiple technology areas, including Security, Voice, High Availability, IP Routing and Multicast, Quality of Service (QoS), IP Mobility, Multiprotocol Label Switching (MPLS), VPNs, and Embedded Management.
Cisco IOS Software release 15.0 will benefit users by providing new feature and hardware support more quickly than in previous Mainline (M) and Technology (T) releases, broadened feature consistency with other major IOS releases, more predictable new feature release and rebuild schedules, proactive individual release support policies, enhanced release numbering, and clearer software deployment and migration guidelines. Figure 1 details Cisco IOS Release 15.0.
Figure 1. Release 15.0 Train Map
Unlike the traditional IOS Software M and T model, IOS Software release 15.0 does not diverge into separate M and T software release trains. Beginning with 15.0, new releases will be available 2-3 times per year, delivered sequentially from a single software train. Extended Maintenance (EM) releases will be available approximately every 20 months. Standard maintenance T releases enable faster Cisco feature delivery before the next EM release becomes available.
Key highlights of Release 15 M & T (illustrated in Figure 1) include the following:
• Feature inheritance from Cisco IOS Software Releases 12.4T and 12.4 Mainline (see Note below).
• New feature releases 3 times a year delivered sequentially from a single train.
• Extended maintenance new feature 15 M releases every 20 months.
• Standard maintenance new feature 15 T releases for the very latest features & hardware support before next 15 M release becomes available on Cisco.com.
• Maintenance rebuilds of 15 M and 15 T releases contain bug fixes only.
15 M Release Numbering (Extended Maintenance)
• Ideal for long-term maintenance, enabling customers to qualify, deploy, and remain on the release for an extended period.
• Provides 44 months of support.
• Incorporates features delivered in previous releases plus incremental new feature enhancements and hardware support.
Figure 2 below defines the release numbering convention for individual 15 M (extended maintenance) releases.
Figure 2. Release Numbering Convention for Cisco IOS Software Release 15 M
The first maintenance rebuild (for bug fixes only, not new features or new hardware support) of Release 15.0(1)M will be numbered15.0(1)M1. Subsequent maintenance releases are defined by an increment of the maintenance rebuild number (e.g. M2, M3, etc.).
15 T Releases Numbering (Standard Maintenance)
• Short deployment releases ideal for latest new features and hardware support before the next M release becomes available.
• Provides regular bug fix maintenance rebuilds for 12 months, plus 6 additional months of critical fix support for network affecting bugs such as Product Security Incident Report Team (PSIRT) issues (standard Cisco PISRT policy will take precedence, see
http://www.cisco.com/go/psirt).
• Incorporates features and hardware support delivered in previous releases.
Figure 3 below describes the release numbering convention planned for individual 15 T (standard maintenance) releases.
Figure 3. Release Numbering Convention for Cisco IOS Software Release 15 T
For example, the first planned 15 T new feature release will be numbered Release 15.1(1)T. The first maintenance rebuild (for bug fixes only, not new features or new hardware support) of Release 15.1(1)T will be numbered 15.1(1)T1. Subsequent maintenance releases are defined by an increment of the maintenance rebuild number (e.g. T2, etc.).
The remainder of this product bulletin provides details of Cisco IOS Software release 15.0 availability for the generation two Cisco Integrated Services Routers Series routers and the associated Flash and DRAM memory requirements.
Cisco IOS Software Release 15.0 Features Sets and Universal IOS Images
Generation Two Integrated Services Routers ship with a universal IOS image that contains all the features available for use on the routers. The specific feature set is activated by the use of technology package licenses such as Security, Unified Communications and Data.
Figure 4. IOS Packaging Model for 1900, 2900 and 3900 Series Integrated Services Routers
There will be two flavors of universal images supported on Generation Two of the Integrated Services Routers:
1. Universal images with the "universalk9" designation in the image name: This universal image offers all the Cisco IOS features including strong payload cryptography features such as IPSec VPN, SSL VPN, and Secure Unified Communications.
2. Universal images with the universalk9_npe" designation in the image name: The strong enforcement of encryption capabilities provided by Cisco Software Activation satisfies requirements for the export of encryption capabilities. However, some countries have import requirements that require that the platform does not support any strong crypto functionality such as payload cryptography. To satisfy the import requirements of those countries, the `npe' universal image does not support any strong payload encryption. This image supports security features like Zone-Based Firewall, Intrusion Prevention through SECNPE-K9 license.
For a given flavor and version of universal IOS image, both the Cisco 3925 and Cisco 3945 share the same IOS image. Similarly, the Cisco 1941 and Cisco 1941 Wireless routers share the same universal IOS image. Within the Cisco 2900 Series product family, Cisco 2901, 2911 and 2921 share the universal IOS images for a given type and version. Cisco 2951 has its own unique IOS image different from rest of the Cisco 2900 Series images.
Cisco IOS Software Release 15.0 Image Sets
For Cisco IOS® Software release 15.0, cross-platform feature sets simplify the image selection process by providing similar functions across platform boundaries. Each device ships with Universal image. IPBase, DATA, UC (Unified Communications) and SEC (Security) technology packages are enabled in the universal image via Cisco Software Activation licensing keys. Each licensing Key is unique to a particular device and is obtained from Cisco by providing the product ID and serial number of the router and a Product Activation Key (PAK), which is provided by Cisco at time of Software purchase.
Cisco Integrated Services Router 1941 IOS Image Set and Memory Recommendations
Table 1 lists the Cisco IOS Software Release 15.0 feature sets that are available for the Cisco 1941 integrated services router. Note that the flash memory recommendations given in the table are calculated without added management tools such as Cisco Configuration Professional (Cisco CP). For more feature detail refer to the product data sheet
Specifications
PRODUCT : Cisco 3925 with 3 onboard GE, C3900-SPE100/K9,
4 EHWIC slots, 4 DSP slots, 1 ISM slot, 2 SM slots,
256MB CF default ,1 GB DRAM default ,IP Base
Cisco 3925 : EMBEDDED HARDWARE-BASED CRYPTOGRAPHY ACCELERATION
(IPSec + Secure Sockets Layer [SSL]): Yes
CISCO UNIFIED COMMUNICATIONS MANAGER EXPRESS SESSIONS**: 250
CISCO UNIFIED SRST SESSIONS : 730
TOTAL ONBOARD WAN OR LAN 10/100/1000 PORTS : 3
RJ-45-BASED PORTS : 3
SFP-BASED PORTS : 2
SERVICE-MODULE SLOTS : 2
DOUBLEWIDE SERVICE-MODULE SLOTS : 1
EHWIC SLOTS : 4
DOUBLEWIDE EHWIC SLOTS : 2
ISM SLOTS : 1
ONBOARD DSP (PVDM) SLOTS : 4
MEMORY DDR2 ECC DRAM: Default : 1 GB
COMPACT FLASH (external): Default: Slot 0 : 256 MB, Slot 1: None
EXTERNAL USB 2.0 SLOTS (Type A) : 2
USB CONSOLE PORT (Type B) (up to 115.2 kbps) : 1
SERIAL CONSOLE PORT (up to 115.2 kbps) : 1
SERIAL AUXILIARY PORT (up to 115.2 kbps) : 1
DIMENSIONS (H x W x D) : 133.35 x 438.15 x 476.25 mm
RACK HEIGHT : 3RU , AIRFLOW : Back to front
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