本文简介:Cisco在版本12.3之前,每个特性都需要对IOS进行升级,这样对于客户来说对于各种版本的IOS的选择来说具有很大的困惑。现在思科12.3版本(路由器)或者12.2S版本(交换机)对于众多的特性进行了打包(packaging)策略用于简化选择:44个特性被组合成路由器的八个特性集,

  Cisco在版本12.3之前,每个特性都需要对IOS进行升级,这样对于客户来说对于各种版本的IOS的选择来说具有很大的困惑。现在思科12.3版本(路由器)或者12.2S版本(交换机)对于众多的特性进行了打包(packaging)策略用于简化选择:44个特性被组合成路由器的八个特性集,多层交换机的七个特性集和两层交换机的两个特性集。根据ITExamPrep.com报道K8特性集从2003年八月开始被K9特性集所取代。
 
  交换机软件包(Switches p ackages)
 
  该特性包主要针对的交换机产品从2900到6500,包括以下特性包: Layer2 Base, LAN Base, IP Base, IP Services, Advanced IP Services, Enterprise Services 和Advanced Enterprise Services.其中Layer2 Base 和LAN Base软件包只针对二层交换机,从IP Base开始针对多层交换机(MLS Switches) .出厂的交换机缺省情况下二层加载了Layer2 Base的软件包,多层加载了IP Base的软件包。
 
  下面介绍各个软件包所具体包含的特性集:
 
  LAYER2 BASE : 用于接入层交换机,通常为29xx. 特性集 : Bridging, spanning-tree (802.1D), 802.1X, etherchannel (802.3ad), Rapid Spanning-Tree (802.1s/w), port-security, smartports, SSHv2.
 
  LAN BASE : 用于需要配置QoS和过滤的接入层交换机,通常为29xx. 特性集: Cisco AutoQos, Cisco AutoSecure, 802.1X, Time Based ACL, Port based ACL, advanced QoS ( Layer 2 to 4 classification, ingress policing, ingress rate limiting, classification DSCP)。
 
  IP BASE: 用于小型局域网路由,硬件切换等交换机,通常为6500 特性集: Static routing, RIP, Stub EIGRP, basic PIM, HSRP, VRRP, GRE tunnels.
 
  IP SERVICES : 用于多层交换的局域网或者广域网,需要高可用性等,通常为6500 特性集: IP routing EIGRP, OSPF, PIM, BGP, PBR, GLBP, HSRP, VRRP, Redundant PR+, Multi-VRF, WAN, NBAR.
 
  ADVANCED IP SERVICES: 用于多层交换的ISP,园区广域网等,通常为6500 特性集: IS-IS, MPLS, L2×××, L3×××, IPv6.
 
  ENTERPRISE SERVICES : 用于多层交换的汇聚层或者核心层,通常为6500 特性集: Appletalk routing, IPX, services IBM
 
  ADVANCED ENTERPRISE SERVICES : 用于多层交换的汇聚层或者核心层,通常为6500 特性集: Firewall IOS, IDS .
 
  汇总图
 
    思科IOS 12.3新命名规范详细图解_思科
   
    下面是相应软件包的命名举例:
    软件包名                         文件名
    Layer 2 Base                   C2900-layer2basek9-mz
    LAN Base                       C2900-lanbasek9-mz
    IP Base                        C6500-ipbasek9-mz
    IP Services                    C6500-ipservicesk9-mz
    Advanced IP Services           C6500-advipservicesk9
    Enterprise Services            C6500-entservicesk9
    Advanced Enterprise Services   C6500-adventservicesk9
    800到3800系列路由器软件包
   
    下面这八个针对路由器的软件包从IOS 12.3T版本开始,2005年八月放出: IP Base, IP Voice, Advanced Security, SP Services, Advanced IP Services, Enterprise Base, Enterprise Services和Advanced Enterprise Services.缺省出厂的路由器都加载的是IP BASE软件包.
    下面是各个软件包所包含的具体特性集 :
    IP BASE : 路由器的出厂配置. 特性集 : DSL, Ethernet switching, inter-vlan 802.1q routing, vlans trunking.
    IP VOICE : 用于语音/电话架构的网络. 特性集 : Voice modules interfaces, H.323, MGCP, SIP, SRST (Survivable Remote Site Telephony), Call Manager Express.
    ADVANCED SECURITY: 用于安全架构的网络,×××网络. 特性集: Firewall IOS (SDM, CSM), IP flow security, VoIP, intrusion detection, Easy ××× client/server.
    SP SERVICES : 用于ISP网络,园区网,城域网. 特性集: Data and voice flow connectivity on IP and ATM, MPLS labels switching.
    ADVANCED IP SERVICES : 用于DSL ISP,Cable ISP或者IPv6网络. 特性集: Security and data/voice ×××, IPv6 connectivity.
    ENTERPRISE BASE : 用于和老的需要IPX等协议的网络进行路由. 特性集: multi-protocols IP, Appletalk, Novell, IPX.
    ENTERPRISE SERVICES : 用于需要古老协议的网络和ISP网络. 特性集: Voice over ATM 和IBM services (Enterprise Base).
    ADVANCED ENTERPRISE SERVICES : 用于多协议网络,城域网,×××,VOIP等. 特性集: Data/voice multi-protocols on IP, Appletalk, Novell, DECnet, security, ×××, MPLS labels switching, Ipv6 networks.
    汇总图:
    
    思科IOS 12.3新命名规范详细图解_图解_02
    
    常这些软件包可以通过两种方式来区分,一种是IOS的文件名,另一种是销售商的产品号(product code)
    下面是一个2800系列路由器的命名示例:
    软件包名                       文件名                     产品号
    IP Base                       C2800-ipbase-mz           S28NIPB-12308T
    IP Voice                      C2800-ipvoice-mz          S28NIPV-12308T
    Enterprise Base               C2800-entbase-mz          S28NEB-12308T
    Advanced Security             C2800-advsecurityk9-mz    S28NASK9-12308T
    SP Services                   C2800-spservicesk9-mz     S28NSPSK9-12308T
    Advanced IP Services          C2800-advipservicesk9-mz S28NAISK9-12308T
    Enterprise Services           C2800-entservicesk9-mz    S28NESK9-12308T
    Advanced Enterprise Services C2800-adventerprisek9-mz S28NAESK9-12308T
    一个2800 IP Voice的软件包价格450欧,而一个Advanced Enterprise Services的软件包则价值2000欧...
   7200/7300系列路由器软件包
    7200/7300系列路由器软件包7200/7300系列路由器的软件包和前面800到3800系列的软件包主要有以下三个不同:
    IP Base软件包增加了SSH特性支持 package
    Advanced Enterprise Services软件包增加了SNA switching特性支持
    Advanced IP Services 增加了Lawful Intercept特性支持。Lawful Intercept (LI)指的是可以满足政府对路由器数据进行侦听的需要. 而这样的软件包也价格不菲,7200的相应软件包价值9000欧.
    汇总图(适用于IOS 12.4(2)T):
    
    思科IOS 12.3新命名规范详细图解_思科_03
    
    7200 系列路由器的IOS命名演化
   
    IOS IP PLUS c7200-is-mz => c7200-ipbase-mz, c7200-ipbasek9-mz, c7200-spservicesk9-mz, c7200-advipservicesk9-mz
    IOS IP IPSec 3DES c7200-ik9s-mz => c7200-ipbasek9-mz, c7200-spservicesk9-mz, c7200-advipservicesk9-mz
    IOS IP/FW/IDS IPSec 3DES c7200-ik9o3s-mz => c7200-advsecurityk9-mz, c7200-advipservicesk9-mz
    IOS ENTERPRISE c7200-js-mz => c7200-adventerprisek9-mz
    IOS ENTERPRISE SSG c7200-g4js-mz => c7200-advipservicesk9-mz (licence SSG)
    IOS SERVICE PROVIDER IPSec 3DES LAWFUL INTERCEPT c7200-jsu2-mz => c7200-advipservicesk9_li-mz
    IOS ENTERPRISE IPSec 3DES c7200-jk9s-mz => c7200-adventservicesk9-mz
    IOS ENTERPRISE/FW/IDS IPSec 3DES c7200-jk9o3s => c7200-adventerprisek9-mz
    IOS ENTERPRISE/SNASW IPSec 3DES c7200-a3jk9s => c7200-adventerprisek9_sna-mz
   
    7300系列路由器IOS命名演化
   
    IOS IP PLUS c7301-is-mz => c7301-ipbase-mz, c7301-ipbasek9-mz, c7301-spservicesk9-mz, c7301-advipservicesk9-mz
    IOS IP IPSec 3DES c7301-ik9s-mz => c7301-ipbasek9-mz, c7301-spservicesk9-mz, c7301-advipservicesk9-mz
    IOS IP/FW/IDS IPSec 3DES c7301-ik9o3s-mz => c7301-advsecurityk9-mz, c7301-advipservicesk9-mz
    IOS ENTERPRISE c7301-js-mz => c7301-adventerprisek9-mz
    IOS ENTERPRISE SSG c7301-g4js-mz => c7301-advipservicesk9-mz (license SSG)
    IOS SERVICE PROVIDER IPSec 3DES LAWFUL INTERCEPT c7301-jsu2-mz => c7301-advipservicesk9_li-mz
    IP SSG IPSec 3DES LAWFUL INTERCEPT c7301-g4jk9su2-mz => c7301-advipservicesk9_li-mz (license SSG)
    IOS ENTERPRISE IPSec 3DES c7301-jk9s-mz => c7301-adventservicesk9-mz
    IOS ENTERPRISE/FW/IDS IPSec 3DES c7301-jk9o3s => c7301-adventerprisek9-mz
    IOS ENTERPRISE/SNASW IPSec 3DES c7301-a3jk9s => c7301-adventerprisek9_sna-mz
   
    中止支持的协议
   
    从12.2 版本以后下面的特性将不被思科IOS所支持: Dot10vLAN, Lan Emulation, Xremote, NASI, LAN Extension, 802.10, appletalk EIGRP, Apollo domain, Banyan Vines, EGP, HP Probe, IGRP, NHRP for IPX, NLSP, SMRP, XNS, Netflow feature acceleration.