From: Chuck Church (cchurch@MAGNACOM.com)
Date: Tue Sep 24 2002 - 14:21:29 GMT-3
Right. I wasn't thinking straight. It could be broadcasts originated by
the router, but not forwarded from other interfaces. Multicasts as well.
Hellos would explain these high counts.
Chuck Church
CCIE #8776, MCNE, MCSE
Sr. Network Engineer
Magnacom Technologies
140 N. Rt. 303
Valley Cottage, NY 10989
845-267-4000
-----Original Message-----
From: carl.newman@elynxtech.com [mailto:carl.newman@elynxtech.com]
Sent: Tuesday, September 24, 2002 12:56 PM
To: cchurch@MAGNACOM.com
Subject: RE: Why Serial interface receive broadcasts packets?
Chuck:
Can you clear something up for me about this post? What do you think about
this? I was under the impression that Multicast traffic was counted as
broadcast traffic on interfaces. The broadcast could be his routing
protocols. That would explain the high number of broadcast if Kevin is
running something like rip or eigrp.
Carl
-----Original Message-----
From: Chuck Church [mailto:cchurch@MAGNACOM.com]
Sent: Tuesday, September 24, 2002 11:39 AM
To: 'Kevin Tang'; 'ccielab@groupstudy.com'
Subject: RE: Why Serial interface receive broadcasts packets?
Kevin,
I'd guess it's all layer 2 things - keepalives, inverse arp, maybe
LMI. Not IP broadcasts.
Chuck Church
CCIE #8776, MCNE, MCSE
Sr. Network Engineer
Magnacom Technologies
140 N. Rt. 303
Valley Cottage, NY 10989
845-267-4000
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Kevin Tang
Sent: Monday, September 23, 2002 5:19 PM
To: ccielab@groupstudy.com
Subject: Why Serial interface receive broadcasts packets?
Hi,
I thought router will break broadcast traffic. So only the ethernet
interface
could recive broadcasts packets. Now I got a Serial interface receive
broadcasts packets.
=====================
Serial0/0 is up, line protocol is up
Hardware is QUICC Serial
MTU 1500 bytes, BW 1920 Kbit, DLY 20000 usec, rely 255/255, load 8/255
Encapsulation FRAME-RELAY, loopback not set, keepalive set (10 sec)
LMI enq sent 7005, LMI stat recvd 7005, LMI upd recvd 0, DTE LMI up
LMI enq recvd 0, LMI stat sent 0, LMI upd sent 0
LMI DLCI 1023 LMI type is CISCO frame relay DTE
Broadcast queue 0/64, broadcasts sent/dropped 83443/0, interface broadcasts
70606
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 19:27:30
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/27/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 119000 bits/sec, 56 packets/sec
5 minute output rate 61000 bits/sec, 62 packets/sec
2015408 packets input, 470644793 bytes, 0 no buffer
Received 38507 broadcasts, 0 runts, 0 giants, 0 throttles
----------------------------------------------------------------------------
-
-
"This communication, including any attachments, is confidential.
If you are not the intended recipient, you should not read
it - please contact me immediately, destroy it, and do not
copy or use any part of this communication or disclose
anything about it. Thank you."
----------------------------------------------------------------------------
-
-
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:44:01 GMT-3