From: Tom Nooning (t.nooning@insightbb.com)
Date: Thu May 26 2005 - 23:30:26 GMT-3
What type of interface are you trying this on?
p1s1#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I5K2L2Q3-M), Version 12.1(22)EA1a
p1s1(config)#int vlan 1
p1s1(config-if)#ntp ?
broadcast Configure NTP broadcast service
disable Disable NTP
multicast Configure NTP multicast service
p1s1(config-if)#ntp broadcast ?
client Listen to NTP broadcasts
destination Configure broadcast destination address
key Configure broadcast authentication key
version Configure NTP version
<cr>
p1s1(config-if)#int fa0/10
p1s1(config-if)#ntp?
% Unrecognized command
p1s1(config-if)#no switchport
p1s1(config-if)#ntp ?
broadcast Configure NTP broadcast service
disable Disable NTP
multicast Configure NTP multicast service
----- Original Message -----
From: "Bob Nelson" <nelsnjr@cox.net>
To: <ccielab@groupstudy.com>
Sent: Thursday, May 26, 2005 9:42 PM
Subject: NTP on 3550
> Hi Everyone:
>
> I am following through the documentation for the 3550 version 12.1(20)EA2
> directly from the CAT Doc CD.
> Chapter 7 discusses using NTP in the broadcast mode for either transmit or
> receive,
> I have the configuration pointing to my Internet router to receive the
> time,
> which works correctly,
> but when I follow the directions to try the broadcast, the ntp command is
> not an option under the interfaces
> on the CAT 3550.
>
> Here is what Cisco says:
> Configuring NTP Broadcast Service
> The switch can send or receive NTP broadcast packets on an
> interface-by-interface basis if there is an NTP broadcast server, such as
> a
> router, broadcasting time information on the network. The switch can send
> NTP broadcast packets to a peer so that the peer can synchronize to it.
> The
> switch can also receive NTP broadcast packets to synchronize its own
> clock.
> This section has procedures for both sending and receiving NTP broadcast
> packets.
>
> configure t
> interface interface-id
> ntp broadcast [version number] [key keyid] [destination-address]
>
> Under any of the interfaces onthe switch, the ntp option does not exist.
>
> Any ideas??
>
> TIA
>
> Bob
>
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