Cisco CISCO10720 Installation And Configuration Manual page 60

RPR/SRP Uplink Card—IEEE 802.17 RPR Mode
Figure 4-3
Node 4
The TX span East port on Node 1 goes to the RX span West port on the next router, which will become
Node 2. The labels above the fiber connectors identify span West (left port) TX and RX, and span East
(right port) TX and RX. (See
Create a four-node IEEE 802.17 ring by connecting the fiber-optic cables to RPR/SRP uplink cards that
are installed in routers on the network. To create a four-node IEEE 802.17 ring, perform the following
steps:
Install an RPR/SRP uplink card in a Cisco 10720 Internet Router on the network.
Step 1
Choose a router with an RPR/SRP uplink card to become Node 1 in the four-node IEEE 802.17 ring.
Step 2
Add nodes to the ring by connecting the receive (RX) and transmit (TX) cables. The RX port on one
Step 3
RPR/SRP uplink card must be connected to a TX port on the next RPR/SRP uplink card.
Table 4-2
Cable Connections
From Node / Connector
Node 1 / TX span East
Node 2 / TX span East
Node 3 / TX span East
Node 4 / TX span East
Node 1 / TX span West
Node 4 / TX span West
Book Title
4-4
Creating an IEEE 802.17 Mode Ring Using RPR/SRP Uplink Cards
Node 3
Tx Tx
Rx Rx
Tx Tx
Rx Rx
Figure
Cable Connections for a Four-Node IEEE 802.17 Mode Ring
Chapter 4 Creating a Four-Node Ring Using the Uplink Cards
Node 2
Tx
Rx
Tx
Rx
4-1.)
To Node / Connector
Node 2 / RX span West
Node 3 / RX spanWest
Node 4 / RX span West
Node 1 / RX span West
Node 4 / RX span East
Node 3 / RX span East
Node 1
Tx
Rx
Tx
Rx
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