̾??

en — Midway ?١????? ATM ???󥿥ե??????ΥǥХ????ɥ饤??

????

device en0 pseudo-device atm

????

en ?ǥХ????ɥ饤?Ф? Efficient Networks, Inc. ENI-155 ?? Adaptec ANA-59x0 ???ޤࡢMidway ?١????? ATM ???󥿥ե??????? ???ݡ??Ȥ??Ƥ??ޤ??? Midway ?? ALL5 SAR (Segmentation and Reassenbly: ????ʬ?䡦??Ω???֥쥤??) ???åפǤ???

?ܥɥ饤?Ф? ATM PVC ?Τߥ??ݡ??Ȥ??Ƥ??ꡢSVC ?? ATM-ARP ?ϥ??ݡ??Ȥ??Ƥ??ޤ?????

?????ɤ? IP ???????򤹤??ˤϰʲ????ͤˤ??ޤ?:

# ifconfig en0 128.252.200.1 netmask
  0xffffff00 up

?ۥ??Ȥ? PVC ???ä????ˤ? ``route'' ???ޥ??ɤ????Ѥ???ɬ?פ??????ޤ?:

# route add -iface <remote IP
  address> -link en0:z.0.x.y

?????ǡ?x ?? y ?ϻ??Ѥ??? VCI ?ΥХ???ɽ???????Ǥ??ꡢ ?ޤ? z ?ϼ??˼????ե饰?ΥХ???ɽ???????Ǥ???

0x01 (AAL5 ??????)??

0x02 (AAL5
  ?????Ѥ??????硢LLCSNAP
  ?إå??????Ѥ???)

???äơ??ѥ??᡼???? 3 ?ξ????? AAL5 ?ڤ? LLC/SNAP ???ץ??벽 ?λ??Ѥ???̣???ޤ??? BPF ?? LLC/SNAP ???ץ??벽???????Ƥ????????Τ? ???Ѳ?ǽ?Ǥ??뤳?Ȥ????դ??Ƥ?????????

??????

2 ?ĤΥۥ??? 128.252.200.1 ?? 128.252.200.2 ?????ꡢ ?????餬 PVC # 201 (0xc9) ?? ATM ????³?????Ƥ????? ???ꤷ?ޤ??礦?? ???Υ??󥯤?ͭ?????????ˤϼ????ͤ˥??ޥ??ɤ????Ѥ??ޤ?:

?ۥ??? 128.252.200.1
  ????:

# ifconfig en0 128.252.200.1 netmask
  0xffffff00 up

# route add -iface 128.252.200.2
  -link en0:3.0.0.c9

?ۥ??? 128.252.200.2
  ????:

# ifconfig en0 128.252.200.2 netmask
  0xffffff00 up

# route add -iface 128.252.200.1
  -link en0:3.0.0.c9

????

en0 <Efficient Networks ENI-155p> rev 0 int a irq 5 on pci0:16
en0: ATM midway v0, board IDs 6.0, Utopia (pipelined), 512KB on-board RAM
en0: maximum DMA burst length = 64 bytes
en0: 7 32KB receive buffers, 8 32KB transmit buffers allocated

?ٹ?

?ܥɥ饤?Ф? PCI ?ˤ????? DMA ?????ϰϤ˻??Ѥ??ޤ??? ?????? PCI ???åץ??åȤǤ?ư??ʤ???????ʬ????ǽ???Фޤ?????

??Ϣ????

ifconfig(8), pvcsif(8), pvctxctl(8), route(8)

????

1996 ǯ??NetBSD ?ˤ????ơ?Washington University ?? Chuck Cranor ?? EN ?ɥ饤?Ф????????ޤ?????