Product |
Top Assembly |
Printed Circuit Assembly |
||
---|---|---|---|---|
Part Number |
Rev. |
Part Number |
Rev. |
|
15454-G1000-4 15454-G1000-4= |
800-08578-02 |
B0 |
73-5561-07 |
C0 |
CRC errors on G1000-4 cards when egress SONET payloads are greater than Gigabit Ethernet line rates (1.0 Gbps).
With the introduction of the ML1000-2 card it is now possible to create SONET circuits with full utilization above Gigabit Ethernet line rate (the STS-24c has a 1.24 Gbps payload capacity). When such a payload is cross connected to the G1000-4 card for sustained periods, the G1000-4 card frame buffers fill up and can ultimately lead to CRC errors because of the limitation in the G1000-4 hardware.
CRC errors experienced on Gigabit Ethernet client interfaces.
Avoid using SONET traffic greater that 1 Gbps line rate or STS24c when using more than one circuit. There is no problem with the STS-24c circuits. The issue is caused by the limitation of this card. This has been fixed with an upgrade to the FPGA in the G1K-4 card.
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
DDTS |
Description |
---|---|
CSCdy02928 (registered customers only) |
G1000 problem with sonet traffic greater than GIGE line rate. This DDTS also applies to a field notice for the ONS 15327. That field notice can be found here. |
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods: