【正文】 ..................17 MPLS L2 VPN (重要) .............................................................................................17II / 70 MPLS L3 VPN.........................................................................................................17 MPLS TE FRR 功能( 可選) .....................................................................................17 INTERNET 層 .....................................................................................................................17 Inter 協(xié)議IPv4( 必選 ).........................................................................................17 互聯(lián)網(wǎng)控制消息協(xié)議ICMP ..................................................................................21 互聯(lián)網(wǎng)組管理協(xié)議（IGMP） ................................................................................24 Inter 協(xié)議IPv6( 重要 ).........................................................................................24 鄰居發(fā)現(xiàn)協(xié)議 ..........................................................................................................27 互聯(lián)網(wǎng)控制消息協(xié)議ICMPv6 ( 重要) ...................................................................29 IPv6 尋址(重要) ......................................................................................................32 IPv6 設(shè)備重編號 .....................................................................................................32 傳輸層 ..............................................................................................................................33 用戶數(shù)據(jù)報協(xié)議UDP(必選) ..................................................................................33 UDP 超長包（jumbogram）的處理(必選) ...........................................................33 傳輸控制協(xié)議TCP(必選) ......................................................................................33 TCP 超長包（jumbogram）的處理(必選) ............................................................34 路由協(xié)議支持要求 ..........................................................................................................34 內(nèi)部網(wǎng)關(guān)協(xié)議 ..........................................................................................................34 外部網(wǎng)關(guān)協(xié)議 ..........................................................................................................35 靜態(tài)路由（必選） ..................................................................................................37 策略路由（必選） ..................................................................................................37 路由信息的過濾(必選 )...........................................................................................37 路由確認(rèn)(必選) .......................................................................................................38 路由協(xié)議間信息交換(必選) ...................................................................................38 組播路由協(xié)議 ..................................................................................................................38 PIMSM（可選） ...................................................................................................38 PIMDM（可選） ...................................................................................................38 PIMSSM（可選） .................................................................................................39 IGMP（必選） ........................................................................................................39 IGMP Snooping（必選） .......................................................................................39 MLD（重要） .........................................................................................................39 MLD Snooping（重要） ........................................................................................397 QOS 要求 .................................................................................................................................39 DIFFSERV（必選） .........................................................................................................39 ELSP（必選） ...............................................................................................................40 MPLSTE（可選） .........................................................................................................408 OAM 要求 ...............................................................................................................................40 OAM 功能要求 ...............................................................................................................40 MPLS OAM 功能 ............................................................................................................41 LSP OAM ................................................................................................................41 PW 的 OAM ............................................................................................................42 ETHERNET OAM 功能要求（必選） .............................................................................42 ATM OAM（可選） ......................................................................................................42 SDH/PDH OAM（可選） ..............................................................................................42III / 709 可靠性要求 ..............................................................................................................................43 網(wǎng)絡(luò)保護(hù)觸發(fā)機(jī)制 ..........................................................................................................43 網(wǎng)絡(luò)可靠性要求 ..............................................................................................................43 設(shè)備可靠性要求 ..............................................................................................................4310 同步要求 ..............................................................................................................................44 總體要求 .............................................................................................................