C i s c o 8SRB/RSRB S R B S R S R B S R B S R BR S R BS R B I B M S R B C i s c o S R BR S R B D L S wd L S w 9 D L S w + 8.1 SRB C i s c os R B C i s c o WA N IBM SNAN e t B I O S S R B / R S R B C i s c o S R B / R S R B S R B / R S R B WA N I P 8.1.1 SRB I B M S N A Network Basic Input Output Services, NetBIOSIBM SNA 80 N e t B I O S P C L A N S R B L A N R S R B L A N WA N 8.1.2 S R B / R S R B I P S R B / R S R B S R B R S R B WA N C i s c o S R B S N AN e t B I O S 8.1.3 RSRB C i s c o 3 S R B
8 SRB/RSRB 135 D i r e c t T C P Fast Sequenced Transport, FST S R B T C P S R B T C P I T C P S R B F S T S R B I P I F S T S R B S R B 8.1.4 WAN C i s c o WA N 4 K B WA N T C P 1492 1492 WA N 8.1.5 S N A 3 R e c e i v e r- r e a d y R e c e i v e r- n o t - r e a d y F r a m e - r e j e c t I B M IBM 3745 S N A IBM 3174 C i s c o S N A WA N RSRB TCP/IP 8.1.6 IP S R B / R S R B I P S R B 8.1.7 S R B Cisco IOS S R Routing Information Field, RIF R I F S R B M A C M A C R I F M A C R I F WA N S N A M A C M A C R I F
136 Cisco M A C M A C D L S w + 9 8.1.8 NetBIOS N e t B I O S S R B / R S R B N e t B I O S Cisco IOS N e t B I O M A C R I F M A C R I FN e t B I O S N e t B I O S N e t B I O S n a m e _ q u e r y C i s c o N e t B I O S d a m p e n i n g I P WA N 8.2 SRB S R B 8.2.1 8-1 C i s c o S R B 3745 WAN 8-1 Cisco SRB
8 SRB/RSRB 137 I B M S N A 8.2.2 S R B 8-2 WAN 8-2 Cisco SRB C i s c o
138 Cisco 8.2.3 S R B 8-3 S R B 3745 WAN 8-3 Cisco SRB
8 SRB/RSRB 139 8.3 C i s c o SRB LAN virtual ring S R B L A N Cisco RSRB S R B R I F 8-4 1 R1 3 WAN R2 2 8-4 Cisco 8-4 C i s c o WA N L A N A 1 L A N B 2S R B 3 A B R I F R i n g 1 - B r i d g e 1 - R i n g 3 - B r i d g e 2 - R i n g 2 R I F R i n g 3 R S R B L A NL A NS R B IEEE 802.51 4 13 S R B 8.3.1 multiport bridging L A N L A 8-5 4 L A N L A N L A N
140 Cisco 1 2 3 4 R S R B 8-5 8.3.2 8-6 15 1 0 0 3 4 5 8-6 RSRB
8 SRB/RSRB 141 8.3.3 S R B S R B C P U 8.3.4 8-7 151 00 S R B 3745 15 100 15 100 8-7 SRB 8.3.5 S R B
142 Cisco M A C M A C S R B R I F 8-8 F E P 2 3 5 15100 15100 8-8 R S R B C P U S R B Cisco IOS 8.4 S R B Cisco IOS proxy explorer 4000.3745.0001 RIF 8-9
8 SRB/RSRB 143 8-9 R I F R I F 8-9 A M A C 4000. 3745. 0001 B M A C M A 4000. 3745. 0001 R I F B B R I F M A C 8.5 NetBIOS N e t B I O S N e t B I O Network Basic End User Interface, NetBEUI N e t B I O S N e t B I O S C 000 N e t B I O S 0000 N e t B I O S 0080 N e t B I O S N e t B I O S N e t B I O S S R B 8.5.1 NetBIOS N e t B I O S N e t B I O S 8-10 NetBIOS NAME-QUERY N e t B I O S M A C R I F A A N e t B I O S C A 3 1 2 A ( ) 8-10 NetBIOS
144 Cisco D 12 A C A A A D A C D NetBIOS NAME-QUERY 8.5.2 NetBIOS N e t B I O S NetBIOS NAME-QUERYN A M E - R E C O G N I Z E D N e t B I O S 8.5.3 NetBIOS NetBIOS NAME-QUERY t h r o t t l i n g N e t B I O S 6N A M E - Q U E RY Cisco IOS 8-11 N e t B I O S 6NAME QUERY 3 1 NAME QUERY 8-11 NetBIOS 8.5.4 NetBIOS N e t B I O S d a m p e n i n g C i s c o 8-12 C C 2 N e t B I O S 2 WA N
8 SRB/RSRB 145 CNAME QUERY( ) C 3 1 2 WAN 3 8-12 NetBIOS 8.6 SRB S R BR S R B R S R S R B 16 R S R B R S R WA N L A N R S R B T C PI P F S T 8.6.1 R S R B 8-13 H D L C F D D I R S R B C P U 8-13 RSRB
146 Cisco 8.6.2 TCP T C P R S R B R S R B S N A V TA M S N A T C P 8-14 L A N T C P R S R B C i s c o 16 IEEE 802.5 T C P R S R B I P I P S N A S N A T C PI P C P U IEEE 802.5 RSRB Cisco IEEE 802.5 TCP TCP IP IP 8-14 RSRB TCP 8.6.3 C i s c o I P R S R B IEEE 802.5 RSRB Cisco IP 8-15 FSTRSRB
8 SRB/RSRB 147 C P U Fast Sequenced Transport, FST C P U F S T I P F S T L L C 2 8-15 F S T F S T 8.7 WAN S R B S R B S R B WA N 8-16 WAN 8-16 WA N process switching f a s t s w i t c h i n g 8.7.1 C P U T C P / I P C P U
148 Cisco 8.7.2 C P U C i s c o Cisco cbus c b u s c b u b y p a s s C P U S R B I P F S T T C P T C P 8.7.3 IP I P WA N I P I P R S R B R I P R I 4 I P I G R PE I G R P 4 M T U O S P F 4 I G R PE I G R PO S P F T C P R S R B F S T F S T I G R PE I G R P 8.7.4 S N A T C P WA N S N A WA N S N A WA N WA N 50 WA N L L C WA N T C P / I P WA N S N A
8 SRB/RSRB 149 8.7.5 WA N S R B WA N C P U F S T T C P / I P I G R PT C P / I P 64 K b p s T C P / I P F S T 8.8 IP SRB S R B S N A S N A S N A 134 0 s S N S N A S N A 8.8.1 Cisco IOS k e e p a l i v eh e l l o 10 s k e e p a l i v e k e e p a l i v e k e e p a l i v e 30 s k e e p a l i v e 3 s 79 s k e e p a l i v e F D D I F D D I F D D I F D D I F D D F D D I C S M A / C D k e e p a l i v e k e e p a l i v 10 s 10s keepalive 213 0 s
150 Cisco 8.8.2 IGRP I G R P d i s t a n c e - v e c t o r h o l d d o w n I G R P S R B I G R P 90 s 20 s I G R P 10 s 20 s 60 I G R P S N A 8.8.3 EIGRP E I G R P I G R P I G R E I G R P 8.8.4 OSPF O S P F k e e p a l i v e O S P F h e l l o O S P F d e a d O S P F O S P F O S P O S P F 40 s S N AN e t B I O S O S P F O S P Fh e l l o O S P F S R B 18 s h e l l o 6 s 8.9 S N A S N A Quality of Se r v i c e, Q o SCisco IOS Cl a s s - o f -Service, CoS S N AN e t B I O S 8.9.1 priority queuing 4 S N A S N C P U 8.9.2 custom queuing 16 01 5 11
8 SRB/RSRB 151 0 k e e p a l i v e S N A R S R B S N A 8.9.3 SAP S A P p r i o r i t i z a t i o n Destination Se r v i c e Ac c e s s Point, DSAP Source Service Access Point, SSAP R S R B S A P RSRB SAP R S R B S A P S A P0 4S N A S A P0 8 S N A 8.9.4 LU SNA LU S N A S N A L U 8.9.5 WAN SAP S A P WA N RSRB WA N e t B I O S L A N S A P S A P S A N e t B I O S N e t B I O S