Media for Trasparent Bridging + bandwidth aggregation

Hi all,

it is the first time i need configure a bridge with 2 routers and i wish some advice from you about that.

I need connect a new site to the old site with the same subnet

192.168.1.0 /24 (TCP/IP) and between the 2 site there are 2 serial lines both with 2Mb of bandwidth .

I need aggregate the 2 serial lines to have a channel with 4Mb (2Mb +

2Mb) of bandwidth between the 2 routers.

I have planned a configuration and before to configure them in my routers i wish know if there are mistakes or something it is better to optimize.

This is my two configurations

hostname router_1

ip no routing

interface e0 description lan old site ip address 192.168.1.1 255.255.255.0 bridge-group 1 no shut

interface s0 description serial_1 2Mb unnumbered e0 bridge-group 1 bridge-group 1 circuit-group 1 no shut

interface s1 description serial_2 2Mb unnumbered e0 bridge-group 1 bridge-group 1 circuit-group 1 no shut

bridge 1 protocol ieee

------------------------------------------------------------

hostname router_2

ip no routing

interface e0 description lan new site ip address 192.168.1.2 255.255.255.0 bridge-group 1 no shut

interface s0 description serial_1 2Mb unnumbered e0 bridge-group 1 bridge-group 1 circuit-group 1 no shut

interface s1 description serial_2 2Mb unnumbered e0 bridge-group 1 bridge-group 1 circuit-group 1 no shut

bridge 1 protocol ieee

many thanks