Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Notas de publicación

ML-100 FastEthernet MTU is not enforced. However, frames larger than 9050 bytes may be discarded 
and cause Rx and Tx errors.

Issuing a “clear IP route *” command can result in high CPU utilization, causing other processes to be 
delayed in their execution. To avoid this issue do not clear a large number of route table entries at once, 
or, if you must use the “clear IP route *” command, do not install more than 5000 EIGRP network routes.

VxWorks is intended for qualified Cisco personnel only. Customer use of VxWorks is not 
recommended, nor is it supported by Cisco's Technical Assistance Center. Inappropriate use of 
VxWorks commands can have a negative and service affecting impact on your network. Please 
consult the troubleshooting guide for your release and platform for appropriate troubleshooting 
procedures. To exit without logging in, enter a Control-D (hold down the Control and D keys at the 
same time) at the Username prompt. To exit after logging in, type “logout” at the VxWorks shell 
prompt.

CTC is unable to communicate with an ONS 15454 that is connected via an Ethernet craft port. CTC 
does, however, communicate over an SDCC link with an ONS 15454 that is Ethernet connected, yielding 
a slow connection. This situation occurs when multiple ONS 15454s are on a single Ethernet segment 
and the nodes have different values for any of the following features: 

Enable OSPF on the LAN

Enable Firewall

Craft Access Only

When any of these features are enabled, the proxy ARP service on the node is also disabled. The ONS 
15454 proxy ARP service assumes that all nodes are participating in the service.

This situation can also occur immediately after the aforementioned features are enabled.  Other hosts on 
the Ethernet segment (for example, the subnet router) may retain incorrect ARP settings for the ONS 
15454s.  

To avoid this issue, all nodes on the same Ethernet segment must have the same values for Enable OSPF 
on the LAN, Enable Firewall, and Craft Access Only. If any of these values have changed recently, it 
may be necessary to allow connected hosts (such as the subnet router) to expire their ARP entries.

You can avoid waiting for the ARP entries to expire on their own by removing the SDCC links from the 
affected ONS 15454 nodes.  This will disconnect them for the purposes of the proxy ARP service and 
the nodes should become directly accessible over the Ethernet. Network settings on the nodes can then 
be provisioned as desired, after which the SDCC can be restored.

This issue is under investigation.