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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!malgudi.oar.net!caen!uwm.edu!cs.utexas.edu!icus!lenny
- From: lenny@icus.ICUS.COM (Lenny Tropiano)
- Subject: ZyXEL to ZyXEL slip connections very fast.
- Message-ID: <1992Nov8.215127.14685@icus.ICUS.COM>
- Organization: ICUS Software Systems, Austin, Texas
- Date: Sun, 8 Nov 1992 21:51:27 GMT
- Lines: 57
-
-
- In doing some testing, we've connected two ZyXEL 1496E modems together
- over standard phone lines at the 16.8K ZyXEL protocol and SLIP, and
- are getting with a 500K file, FTP transfer times of:
-
- w/no error control or compression 1.5Kb/sec (~1500 cps)
- w/error control and compression 2.9Kb/sec (~2900 cps thruput)
-
- We've also fired up some X11/clients remotely and that's proved to be
- quite usable, even for graphics. Granted, it's no 10Mbps ethernet, but
- it's usable for most things.
-
- ping (icmp packets) times are slightly inflated with compression turned on,
- varying like so:
-
- PING s-taliesin (192.100.159.6): 56 data bytes
- 64 bytes from 192.100.159.6: icmp_seq=0 ttl=255 time=180 ms
- 64 bytes from 192.100.159.6: icmp_seq=1 ttl=255 time=211 ms
- 64 bytes from 192.100.159.6: icmp_seq=2 ttl=255 time=208 ms
- 64 bytes from 192.100.159.6: icmp_seq=3 ttl=255 time=206 ms
- 64 bytes from 192.100.159.6: icmp_seq=4 ttl=255 time=203 ms
- 64 bytes from 192.100.159.6: icmp_seq=5 ttl=255 time=200 ms
- 64 bytes from 192.100.159.6: icmp_seq=6 ttl=255 time=215 ms
- 64 bytes from 192.100.159.6: icmp_seq=7 ttl=255 time=194 ms
- 64 bytes from 192.100.159.6: icmp_seq=8 ttl=255 time=202 ms
- 64 bytes from 192.100.159.6: icmp_seq=9 ttl=255 time=209 ms
-
- --- s-taliesin ping statistics ---
- 10 packets transmitted, 10 packets received, 0% packet loss
- round-trip min/avg/max = 180/202/215 ms
-
- Without compression, we're getting:
-
- PING s-taliesin (192.100.159.6): 56 data bytes
- 64 bytes from 192.100.159.6: icmp_seq=0 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=1 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=2 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=3 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=4 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=5 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=6 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=7 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=8 ttl=255 time=153 ms
- 64 bytes from 192.100.159.6: icmp_seq=9 ttl=255 time=153 ms
-
- --- s-taliesin ping statistics ---
- 10 packets transmitted, 10 packets received, 0% packet loss
- round-trip min/avg/max = 153/153/153 ms
-
- Although we loose a little on Interactive turnaround time, the
- overall throughput with compression (v.42bis) is preferable.
-
- -L.
- --
- | Lenny Tropiano ICUS Software Systems lenny@icus.ICUS.COM |
- | ...!{cs.utexas.edu,ames,pacbell}!icus!lenny |
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