The software bridge used to operate like a hub, and according to some
reports that we've gotten, the switch chip also operated like a hub.
However, I have heard through the rumor mill that the hub-like operation
of the switch chip was fixed in ROS 6.x.
I have not personally tested either one.
This would be a good point for someone that actually knows to chime in.
Chupaka?
Butch?
bp
On 2/5/2014 7:47 AM, Grand Avenue Broadband wrote:
A few years back, I had a problem configuring a new tower. It had a central
RB450 router distributing to three sector enclosures powered by RB711s, all
sharing the same IP range. The 711s were getting wacky times via SNTP because
they were apparently receiving time correction packets multiple times. This
was despite the use of RSTP and unique admin MACs on the port bridges on the
711s. On someone's advice, I switched from using the hardware switch chip on
the 450 to using a software bridge, and the packet replication problem went
away. So as far as I'm concerned there is still some black magic difference
between them.
On Feb 5, 2014, at 8:36 AM, Craig Baird <[email protected]> wrote:
I don't think that's right. What you're defining is a hub (repeating
everything out every port). MT bridges do learn. In general networking terms,
a switch is considered to be a multiport bridge. In the MT world, I've always
assumed the difference between switching and bridging to be as Stephen said.
Switching is done in hardware, while bridging is done in software. But as far
as basic function goes, I think they're very similar. I think bridging gives
you more knobs and levers to manipulate things, due to it being done in
software.
Craig
Quoting Scott Reed <[email protected]>:
Bridge and switch on MT are not the same thing.
Switch , implemented in hardware as you note, once it discovers the port to
use for a MAC address, it only sends data for that MAC out that port.
Bridge is in software and can be very slow. I doubt that they do any MAC
detection, just send all the data out all the ports. By definition a bridge
does nothing but redistribute the data.
On 2/4/2014 8:24 PM, Stephen Wong wrote:
From my 2 cents of understanding, ethernet bridge and switch is the same
thing! Just in the good old days, we had 2-port bridge and now, we have
multi-port switch. I know, the 'switch' in a Mikrotik means the switching
fabric is implemented in hardware chips and bridge means the logic is
implemented by software. But other than performance difference (wire speed
vs as-fast-as-your-box-can-go), both are Layer 2 devices to work on MAC
addresses.
Stephen WONG
On Wed, Feb 5, 2014 at 2:00 AM, <[email protected]>wrote:
Date: Mon, 3 Feb 2014 18:46:35 +0000
From: Paul McCall <[email protected]>
Subject: Re: [Mikrotik] Bridge Ports showing with an S on version 6.7
To: Mikrotik discussions <[email protected]>
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="us-ascii"
+1 on the distinctive letter .... thinking a "B" for bridge? Naaah...
that would make too much sense
:)
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Wireless Networking
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