Cisco Cisco IOS XR Software Release 3.2 發佈版本通知

Symptoms: There are two symptoms, as follows: 

envmon_mon on the RP is seen permanently REPLY blocked on the envmon process of the Fan 
Controller Card, which in turn is REPLY blocked on the i2c_server process on the Fan 
Controller card. 

After issuing any install command, instdir process on the RP remains REPLY blocked on the 
Fan Controller i2c_server process. 

Conditions: While the i2c_server process on Fan Controller is doing a routine I2C transaction to 
the fan tray EEPROM, the Fan Controller card was reloaded for some reason (say, due to an install 
operation that required the card reload), leaving an I2C transaction incomplete. The next time IOX 
came back after the reload, the first I2C access to the fan tray EEPROM caused the hang. 

Workaround: Recovery mechanisms are possible in the previous scenario, as follows: 

Unhang the I2C bus from software.

OIR the fan tray physically to unhang the I2C bus (1) can be done only from ROMMON that 
this DDTS is addressing. 

Basic Description: Entries in the MPLS Label Forwarding Information Base (LFIB) may be 
incorrect. 

Symptom: Forwarding over TE tunnels may stop.

Conditions: This symptom is observed following a route processor (RP) switchover on a Cisco 
router that has many BGP/IGP routes and thousands of MPLS TE tunnels. 

Workaround: Restart the MPLS TE control plane process with 

“

process restart te_control”.

Basic Description: Various failure scenarios in the control plane of an IPv6 enabled router that 
would result in disruptions to data forwarding. OSPF configuration is needed to support controlling 
the multicast-intact feature.

Symptom: Disruptions to data forwarding.

Conditions: Various failure scenarios in the control plane of an IPv6-enabled router.

Workaround: OSPF configuration is needed to support controlling the multicast-intact feature.

This section lists the open caveats for Cisco IOS XR Software Release 3.2.2. The caveats are organized 
as follows: