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| 作者：不明 来源：www.pccode.net 整理 发布时间：2007-1-24 15:24:18 发布人：wongrs | |
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ss-list {number} {permit/deny} {source} {service type} To apply – on interface: ipx input-sap-filter {number} access-list 1010 permit 11.0000.0000.0001 0 int e0 ipx input-sap-filter 1010 Access list Numbers allowed: 1-99 IP Standard 100-199 IP Extended 800-899 IPX Standard 900-999 IPX Extended 1000-1099 IPX SAP To Monitor Access Lists: Show access-list WAN Protocols HDLC – modified sdlc by ISO, default on Cisco routers PPP – runs on async (dial-up) or sync (ISDN) lines. Supports multi-protocols Frame Relay – shared bandwidth over public network. Virtual circuits are identified by DLCI's. (Data Link Connection identifiers). LMI, co-developed in 1990 by Cisco, provides message information about current DLCI values (global or local significance), and the status of virtual circuits. Subinterfaces allow you to have multiple virtual circuits on a single serial interface. You must map an IP device to the DLCI (using the frame-relay map command or the inverse-arp function) int s0 encapsulation frame-relay {ietf} note: if you don's specify ietf, it uses Cisco by default frame-relay interface-dlci {#} frame-relay lmi-type {Cisco, ansi, q933a} Subinterfaces: int s0.x {multipoint / point-to-point} Mapping: int s0 inverse-arp or frame-relay map ip x.x.x.x # Monitoring: show frame {pvc / ip / lmi / traffic / etc.} ISDN Terminal equipment types: TE1 – understand ISDN standards TE2 – predate ISDN standards, require a TA (terminal adapter) Reference Points describe the point between: R – non-ISDN and TA S – user terminals and NT2 T – NT1 and NT2 devices U – NT1 and line termination ISDN Protocols: E – on existing telephone network I – concepts, terminology, and services Q – switching and signaling ISDN BRI: 2 64K B channels, plus 1 16K D channel ISDN PRI: 23 64K B channels, plus 1 64K D channel
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