BSD 4_3 release

[unix-history] / usr / man / man4 / vv.4

diff --git a/usr/man/man4/vv.4 b/usr/man/man4/vv.4
index 21118dd..bc732ed 100644 (file)
--- a/usr/man/man4/vv.4
+++ b/usr/man/man4/vv.4
@@ -1,47 +1,40 @@
-.TH VV 4 "27 July 1983"
-.UC 4
+.\" Copyright (c) 1983 Regents of the University of California.
+.\" All rights reserved.  The Berkeley software License Agreement
+.\" specifies the terms and conditions for redistribution.
+.\"
+.\"    @(#)vv.4        6.2 (Berkeley) 5/16/86
+.\"
+.TH VV 4 "May 16, 1986"
+.UC 5

 .SH NAME
 vv \- Proteon proNET 10 Megabit ring
 .SH SYNOPSIS
 .SH NAME
 vv \- Proteon proNET 10 Megabit ring
 .SH SYNOPSIS

-.B "device vv0 at uba0 csr 161000 vector vvrint vvxint"
+.B "device vv0 at uba0 csr 0161000 vector vvrint vvxint"

 .SH DESCRIPTION
 The
 .I vv
 interface provides access to a 10 Mb/s Proteon proNET ring network.
 .PP
 .SH DESCRIPTION
 The
 .I vv
 interface provides access to a 10 Mb/s Proteon proNET ring network.
 .PP

-The network number to which the interface is attached must
-be specified with an SIOCSIFADDR ioctl before data can be
-transmitted or received.
-The host's address is discovered by putting the interface in
-digital loopback mode (not joining the ring)
-and sending a broadcast packet from which the source
-address is extracted.
-the Internet address of the interface would be 128.3.0.24.
+The network address of the interface must be specified with an
+an SIOCSIFADDR ioctl before data can be transmitted or received.
+It is only permissible to change the network address while the
+interface is marked "down".

 .PP
 .PP

-The interface software implements error-rate limiting on
-the input side.
-This provides a defense against situations where other hosts
-or interface hardware failures cause a machine to be
-inundated with garbage packets.
-The scheme involves an exponential backoff where the input
-side of the interface is disabled for longer and longer periods.
-In the limiting case,
-the interface is turned on every two minutes or so to see
-if operation can resume.
+The host's hardware address is discovered by putting the interface in
+digital loopback mode (not joining the ring) and sending a broadcast
+packet from which the hardware address is extracted.
+.PP
+Transmit timeouts are detected through use of a watchdog routine.
+Lost input interrupts are checked for when packets are sent out.

 .PP
 If the installation is running CTL boards which use the old broadcast
 address of 0 instead of the new address of 0xff, the define OLD_BROADCAST
 should be specified in the driver.
 .PP
 .PP
 If the installation is running CTL boards which use the old broadcast
 address of 0 instead of the new address of 0xff, the define OLD_BROADCAST
 should be specified in the driver.
 .PP

-If the installation has a Wirecenter, the define WIRECENTER should
-be specified in the driver.
-.BR N.B. :
-Incorrect definition of WIRECENTER can cause hardware damage.
-.PP
-The interface normally tries to use a ``trailer'' encapsulation
-to minimize copying data on input and output.  This may be
-disabled, on a per-interface basis, by setting the IFF_NOTRAILERS
-flag with an SIOCSIFFLAGS ioctl.
+The driver can use ``trailer'' encapsulation to minimize copying
+data on input and output.
+This may be disabled, on a per-interface basis,
+by setting the IFF_NOTRAILERS flag with an SIOCSIFFLAGS ioctl.

 .SH DIAGNOSTICS
 .PP
 \fBvv%d: host %d\fP.  The software announces the host
 .SH DIAGNOSTICS
 .PP
 \fBvv%d: host %d\fP.  The software announces the host


@@ -70,3 +63,8 @@ an immediate
 .IR "panic: vs_olen" .
 .SH SEE ALSO
 intro(4N), inet(4F)
 .IR "panic: vs_olen" .
 .SH SEE ALSO
 intro(4N), inet(4F)

+.SH BUGS
+The encapsulation of trailer packets in the 4.2BSD version of this driver
+was incorrect (the packet type was in VAX byte order).
+As a result, the trailer encapsulation in this version is not compatible
+with the 4.2BSD VAX version.