IBM 8260 Switch User Manual


 
Do you want to enter this into module x.ys EEPROM (Y/N):
8. Enter
Y
in response to the above prompt.
9. Remove the module from the 8260 and install the I/O card.
10. Return DMM to normal operation using the following command:
BOOT
11. Install the module in the 8260. Now the module will report accurate power
requirements of the entire module.
11.3 Bridging Functions
This module can perform transparent bridging (TB) between Ethernet or 802.3
segments as well as between token-ring segments. Also, it can be configured to
perform source-route transparent (SRT) bridging between token-ring networks.
Finally, it can perform translational bridging between token-ring and Ethernet (or
802.3) networks when both the token-ring and Ethernet (or 802.3) segments are
using transparent bridging.
Note
This module cannot perform source-route to transparent (SR-TB) bridging like
the IBM 8209 and 8229.
This module supports the spanning tree protocol and can coexist and
interoperate with other transparent and source-route transparent bridges that
support the spanning tree protocol.
Note
This module cannot use the spanning tree protocol to interoperate with
source route (SR) bridges.
When performing transparent bridging functions, it dynamically learns the
addresses of all the nodes on the subnetworks. To do so, the module looks at
the source address of each packet and creates a database containing these
addresses. You can also configure the filtering database with permanent entries
to build a customized bridging environment. When a packet is received by the
module, its destination is compared with the addresses in the database entries
for that subnetwork. If it is found, the station is considered to be local and the
packet will not be forwarded. If the address is not found, the station is
considered to be in a subnetwork other than the source subnetwork and the
packet will be forwarded on some or all the ports depending on how you have
configured your bridge. For information about filtering databases and the
filtering options provided by the Multiprotocol Interconnect module, refer to
11.8.5, “Filtering for Bridging Functions” on page 270.
As a source-route transparent bridge, this module will use the routing
information field (RIF) in the frame to forward the packet towards its destination.
This module can also be configured to bridge the traffic between token-ring and
Ethernet (or 802.3) networks. In bridging traffic between token-ring and Ethernet
(or 802.3) it also supports IPX traffic.
244 8260 Multiprotocol Intelligent Switching Hub