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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
A P P E N D I X
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Upgrade Information
This appendix provides special upgrade information.
Upgrade BXM to BXM-E Cards
You can now gracefully upgrade your Broadband Switch Module (BXM) card to a BXM-E card without
any service interruption (on Y-red BXMs).
The enhanced BXM-E card (version DX or EX) supports a higher connection density (32K) than either
the legacy BXM or regular BXM-E cards. Both DX and EX versions have the same connection density,
providing the ability to upgrade networks with the high connection density BXM-Es on trunk side, port
side, or a combination of trunks and ports.
Prior to this feature, upgrading a functioning legacy BXM or regular BXM-E card (configured in
low-connection-density mode), to the DX or EX version of BXM-E (configured in higher connection
density mode) required deleting all existing connections terminating on the active BXM card and
reestablishing the connections on the new card.
After the BXM-E card replaces the BXM card, the switch software programs all channels on the new
active card or on the hot standby card. The performance effect due to programming the channels is
minimal since the process is done only once for each BXM card. If the cards are Y-red, Automatic
Routing Management traffic still can be transported through the active card while the standby BXM-E
is programmed.
This section contains both automatic and automatic and manual upgrade scenarios. The benefit of
manually upgrading is that the logical database is not automatically upgraded, thus permitting you to fall
back from BXM-E to BXM without mismatch. The concept of mismatch is introduced when BXM cards
are configured as Y-redundancy or 1+1 APS. BXM cards with different connection densities are not
declared as mismatch, so long as the physical density of the latest inserted card is greater or equal to the
density of the other card in the Y-redundancy pair.
If VSI was configured on the legacy card, the VSI partition is expanded to allow the extra LCNs. The
additional LCNs are allocated to the first port of the first enabled VSI. This provides a convenient way
to fall back to a former VSI configuration.
Summary of Contents for BPX 8650
Page 49: ...P A R T 1 The BPX Switch ...
Page 50: ......
Page 159: ...P A R T 2 Installation ...
Page 160: ......
Page 273: ...P A R T 3 Initial Configuration and Network Management ...
Page 274: ......
Page 311: ...P A R T 4 Configuring Connections ...
Page 312: ......
Page 487: ...P A R T 5 Troubleshooting and Maintenance ...
Page 488: ......
Page 533: ...P A R T 6 BPX Specifications ...
Page 534: ......
Page 555: ...P A R T 7 Appendices ...
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