Complete loss of network on 6_STABLE
Drew
cotharyus at gmail.com
Sat Apr 14 13:10:36 UTC 2007
Thank you. I don't know if there was a change to the driver, or if something
suddenly changed on my end, but the sis0 interface is now configured in the
place of the nve0 interface, and we'll go from there and figure things out.
I'm going to stick my neck out and say I've got a cable problem though.
On 4/13/07, Bill Moran <wmoran at potentialtech.com> wrote:
>
> Drew <cotharyus at gmail.com> wrote:
> >
> > On 4/14/07, Bill Moran <wmoran at potentialtech.com> wrote:
> > >
> > > Drew <cotharyus at gmail.com> wrote:
> > > >
> > > > A little more on this, because now I am really stumped. I have taken
> > > known
> > > > good source, and moved it via CD to this machine. I rebuilt, and it
> > > exhibits
> > > > exactly the same behavior, with both my kernel, and GENERIC. Pinging
> an
> > > IP
> > > > on my lan results in ping: sendto: host is down. There are no active
> > > > firewalls on this machine. When I ping another IP on the network,
> > > activity
> > > > happens on the switch. I have swapped NIC's to a known working one
> from
> > > > another machine, and it behaves identically. I have changed ports on
> the
> > > > switch. About the only thing I haven't done is reinstall (which
> reminds
> > > me,
> > > > I have a Freesbie disc around here somewhere to try) - but I'd
> rather
> > > that
> > > > was a last resort. Meaning I'm open to any suggestions anyone might
> have
> > > > about this.
> > >
> > > I'm coming to this thread a little late, so I apologize if this
> > > information has already been passed around.
> > >
> > > Can you provide ifconfig -a, netstat -m, netstat -s, netstat -rn
> output
> > > on the troubled system.
> > >
> >
> > ifconfig -a:
> > sis0: flags=8842<BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > options=8<VLAN_MTU>
> > ether 00:a0:cc:73:64:69
> > media: Ethernet autoselect (100baseTX)
> > status: active
> > nve0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > inet 192.168.1.6 netmask 0xffffff00 broadcast 192.168.1.255
> > ether 00:15:f2:7f:80:86
> > media: Ethernet autoselect (100baseTX <half-duplex>)
>
> Right off the bat I can tell you that this is wrong. There is no
> such thing as 100baseTX half-duplex. It would appear as if the card
> is not properly auto-negotiating with the switch.
>
> I've never seen this problem cause the total failure you're reporting,
> but I've seen it cause lots of other problems, and it's possibly
> related. If the switch is managed, make sure that it's set to
> auto-negotiate. Otherwise, you might have to play some games with
> manually setting the speed on the card. Unfortunately, I've seen this
> make it worse sometimes: manually set the duplex on the card, and the
> switch picks the wrong duplex setting. As a result, unmanaged switches
> are generally bad for networks.
>
> > status: active
> > plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
> > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
> > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
> > inet6 ::1 prefixlen 128
> >
> > (note the sis0 has no configuration in the system we are talking about,
> > that's the working test card I installed, and what I'm using with
> Freesbie,
> > as it doesn't seem to know about the nve0)
> >
> > netstat -m:
> > 130/395/525 mbufs in use (current/cache/total)
> > 128/146/274/25600 mbuf clusters in use (current/cache/total/max)
> > 128/128 mbuf+clusters out of packet secondary zone in use
> (current/cache)
> > 0/0/0/0 4k (page size) jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 9k jumbo clusters in use (current/cache/total/max)
> > 0/0/0/0 16k jumbo clusters in use (current/cache/total/max)
> > 288K/390K/679K bytes allocated to network (current/cache/total)
> > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters)
> > 0/0/0 requests for jumbo clusters denied (4k/9k/16k)
> > 0/5/6656 sfbufs in use (current/peak/max)
> > 0 requests for sfbufs denied
> > 0 requests for sfbufs delayed
> > 0 requests for I/O initiated by sendfile
> > 0 calls to protocol drain routines
> >
> > netstat -s:
> > tcp:
> > 0 packets sent
> > 0 data packets (0 bytes)
> > 0 data packets (0 bytes) retransmitted
> > 0 data packets unnecessarily retransmitted
> > 0 resends initiated by MTU discovery
> > 0 ack-only packets (0 delayed)
> > 0 URG only packets
> > 0 window probe packets
> > 0 window update packets
> > 0 control packets
> > 3 packets received
> > 0 acks (for 0 bytes)
> > 0 duplicate acks
> > 0 acks for unsent data
> > 0 packets (0 bytes) received in-sequence
> > 0 completely duplicate packets (0 bytes)
> > 0 old duplicate packets
> > 0 packets with some dup. data (0 bytes duped)
> > 0 out-of-order packets (0 bytes)
> > 0 packets (0 bytes) of data after window
> > 0 window probes
> > 0 window update packets
> > 0 packets received after close
> > 0 discarded for bad checksums
> > 0 discarded for bad header offset fields
> > 0 discarded because packet too short
> > 0 connection requests
> > 0 connection accepts
> > 0 bad connection attempts
> > 0 listen queue overflows
> > 0 ignored RSTs in the windows
> > 0 connections established (including accepts)
> > 5 connections closed (including 0 drops)
> > 0 connections updated cached RTT on close
> > 0 connections updated cached RTT variance on close
> > 0 connections updated cached ssthresh on close
> > 0 embryonic connections dropped
> > 0 segments updated rtt (of 0 attempts)
> > 0 retransmit timeouts
> > 0 connections dropped by rexmit timeout
> > 0 persist timeouts
> > 0 connections dropped by persist timeout
> > 0 keepalive timeouts
> > 0 keepalive probes sent
> > 0 connections dropped by keepalive
> > 0 correct ACK header predictions
> > 0 correct data packet header predictions
> > 0 syncache entries added
> > 0 retransmitted
> > 0 dupsyn
> > 0 dropped
> > 0 completed
> > 0 bucket overflow
> > 0 cache overflow
> > 0 reset
> > 0 stale
> > 0 aborted
> > 0 badack
> > 0 unreach
> > 0 zone failures
> > 0 cookies sent
> > 0 cookies received
> > 0 SACK recovery episodes
> > 0 segment rexmits in SACK recovery episodes
> > 0 byte rexmits in SACK recovery episodes
> > 0 SACK options (SACK blocks) received
> > 0 SACK options (SACK blocks) sent
> > 0 SACK scoreboard overflow
> > udp:
> > 9 datagrams received
> > 0 with incomplete header
> > 0 with bad data length field
> > 0 with bad checksum
> > 0 with no checksum
> > 4 dropped due to no socket
> > 0 broadcast/multicast datagrams dropped due to no socket
> > 0 dropped due to full socket buffers
> > 0 not for hashed pcb
> > 5 delivered
> > 36 datagrams output
> > ip:
> > 554 total packets received
> > 0 bad header checksums
> > 0 with size smaller than minimum
> > 0 with data size < data length
> > 0 with ip length > max ip packet size
> > 0 with header length < data size
> > 0 with data length < header length
> > 0 with bad options
> > 0 with incorrect version number
> > 0 fragments received
> > 0 fragments dropped (dup or out of space)
> > 0 fragments dropped after timeout
> > 0 packets reassembled ok
> > 12 packets for this host
> > 0 packets for unknown/unsupported protocol
> > 0 packets forwarded (0 packets fast forwarded)
> > 510 packets not forwardable
> > 32 packets received for unknown multicast group
> > 0 redirects sent
> > 46 packets sent from this host
> > 0 packets sent with fabricated ip header
> > 0 output packets dropped due to no bufs, etc.
> > 0 output packets discarded due to no route
> > 0 output datagrams fragmented
> > 0 fragments created
> > 0 datagrams that can't be fragmented
> > 0 tunneling packets that can't find gif
> > 0 datagrams with bad address in header
> > icmp:
> > 4 calls to icmp_error
> > 0 errors not generated in response to an icmp message
> > Output histogram:
> > destination unreachable: 4
> > 0 messages with bad code fields
> > 0 messages < minimum length
> > 0 bad checksums
> > 0 messages with bad length
> > 0 multicast echo requests ignored
> > 0 multicast timestamp requests ignored
> > 0 message responses generated
> > 0 invalid return addresses
> > 0 no return routes
> > ICMP address mask responses are disabled
> > igmp:
> > 0 messages received
> > 0 messages received with too few bytes
> > 0 messages received with bad checksum
> > 0 membership queries received
> > 0 membership queries received with invalid field(s)
> > 0 membership reports received
> > 0 membership reports received with invalid field(s)
> > 0 membership reports received for groups to which we belong
> > 0 membership reports sent
> > ip6:
> > 0 total packets received
> > 0 with size smaller than minimum
> > 0 with data size < data length
> > 0 with bad options
> > 0 with incorrect version number
> > 0 fragments received
> > 0 fragments dropped (dup or out of space)
> > 0 fragments dropped after timeout
> > 0 fragments that exceeded limit
> > 0 packets reassembled ok
> > 0 packets for this host
> > 0 packets forwarded
> > 0 packets not forwardable
> > 0 redirects sent
> > 6 packets sent from this host
> > 0 packets sent with fabricated ip header
> > 0 output packets dropped due to no bufs, etc.
> > 0 output packets discarded due to no route
> > 0 output datagrams fragmented
> > 0 fragments created
> > 0 datagrams that can't be fragmented
> > 0 packets that violated scope rules
> > 0 multicast packets which we don't join
> > Mbuf statistics:
> > 0 one mbuf
> > 0 one ext mbuf
> > 0 two or more ext mbuf
> > 0 packets whose headers are not continuous
> > 0 tunneling packets that can't find gif
> > 0 packets discarded because of too many headers
> > 0 failures of source address selection
> > 0 forward cache hit
> > 0 forward cache miss
> > Source addresses selection rule applied:
> > icmp6:
> > 0 calls to icmp6_error
> > 0 errors not generated in response to an icmp6 message
> > 0 errors not generated because of rate limitation
> > Output histogram:
> > multicast listener report: 6
> > 0 messages with bad code fields
> > 0 messages < minimum length
> > 0 bad checksums
> > 0 messages with bad length
> > Histogram of error messages to be generated:
> > 0 no route
> > 0 administratively prohibited
> > 0 address unreachable
> > 0 port unreachable
> > 0 packet too big
> > 0 time exceed transit
> > 0 time exceed reassembly
> > 0 erroneous header field
> > 0 unrecognized next header
> > 0 unrecognized option
> > 0 redirect
> > 0 unknown
> > 0 message responses generated
> > 0 messages with too many ND options
> > 0 messages with bad ND options
> > 0 bad neighbor solicitation messages
> > 0 bad neighbor advertisement messages
> > 0 bad router solicitation messages
> > 0 bad router advertisement messages
> > 0 bad redirect messages
> > 0 path MTU changes
> > rip6:
> > 0 messages received
> > 0 checksum calcurations on inbound
> > 0 messages with bad checksum
> > 0 messages dropped due to no socket
> > 0 multicast messages dropped due to no socket
> > 0 messages dropped due to full socket buffers
> > 0 delivered
> > 0 datagrams output
> >
> > netstat -rn:
> > Routing tables
> >
> > Internet:
> > Destination Gateway Flags Refs Use Netif
> Expire
> > default 192.168.1.4 UGS 0 10 nve0
> > 192.168.1 link#2 UC 0 0 nve0
> > 192.168.1.4 link#2 UHLW 2 36 nve0
> >
> > Internet6:
> > Destination Gateway Flags
> > Netif
> > Expire
> > ::1 ::1 UHL
> > lo0
> > fe80::%lo0/64 fe80::1%lo0 U
> > lo0
> > fe80::1%lo0 link#4 UHL
> > lo0
> > ff01:4::/32 fe80::1%lo0 UC
> > lo0
> > ff02::%lo0/32 fe80::1%lo0 UC
> > lo0
> >
> > Lots of copying and pasting. Let me know if you have any questions about
> > anything else, but I think I explained the only thing that looked
> strange
> > (so maybe if there's something else strange, that's my problem....)
> >
>
>
> --
> Bill Moran
> http://www.potentialtech.com
>
More information about the freebsd-questions
mailing list