From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Tue Mar 19 2002 - 04:57:16 GMT-3
The bridge and ring number are HEX in configureing Cat39xx switch , but the def
ault is decimal in router configuration. We tend to think in decimal if we see
0-9...by default.
I think most of us are familar with ethernet Vlan and tend to assosiate Vlan nu
mber as a seperate "LAN" but it is not the case in Cat39xx. In ethernet switch
, all ports belong to vlan 1 by default.
We then create Vlan and assign ports per Vlan. In Cat39xx, all ports belong to
a default ring(TrCRF) which attach to a default bridge(TrBRF).In token ring, yo
u can configure SRT or SRB.
SRT is Transparant Bridge, it is transparent, the bridge is intelligent to lear
n and forward traffic). We don't have to do much in configuration.
SRB, it is soure route, bridge is not so intelligent and we have to do some con
figuration, , the source device has to provide the route infor for the bridge t
o forward the traffic.
In Cat39xx, you can think this way, first create a TrBRF, then you create one o
r more TrCRF attach to this TrBRF, then assisgn port to each ring, it look lik
e a Vlan consists of token ring's attach to one bridge. The bridge's and ring's
each has a Vlan ID. but it could be in a token ring network domain(one extende
d lan).
eg Port(1,2,3)->(Ring[10,Vlan 2])->\bridge[1],Vlan 3/
port(4,5,6)->(Ring[20,Vlan 4])->\bridge[1],Vlan 3/
Port(7,8,9)->(Ring[11,Vlan 5])->\bridge[2],Vlan 7/
port(10,11)->(Ring[21,Vlan 6])->\bridge[2],Vlan 7/
We just created two token ring domain in a Cat39xx.
Now if we connecte R1 token ring to port 1 is just to said that R1 is connect t
o Ring 16(hex 10)
> Parry Chua
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