Datasheet

265
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
• When an (S,G) entry with the T flag set transitions to an (S,G,R) entry an (S,G) RP-bit prune is sent
towards the source instead of towards the RP. This problem is resolved in Release 12.1(12c)E1.
(CSCdw95442)
• A reload might occur when you enter the show ip mroute command. This problem is resolved in
Release 12.1(12c)E1. (CSCdw20251)
• The distribute-list list_number out protocol protocol_number command does not work. This
problem is resolved in Release 12.1(12c)E1. (CSCdu52717)
• VLANs in the 1002 to 1005 range are disabled by default in Catalyst software. In the Cisco IOS
images for the Catalyst 6500 series switches and Cisco 7600 Series Routers, the VLANs are in the
forwarding state by default. This default discrepancy might cause a problem in a situation where a
system running Release 12.1(8a)E3 or later on the supervisor engine and the MSFC is connected
through an 802.1 Q tunnel to a system running Catalyst software. If the system running Cisco IOS
software sends BPDUs for reserved VLANs in the 1002 to 1005 range, the system running Catalyst
software drops these BPDUs and increments the rxTotalDrop counter. This problem is resolved in
Release 12.1(12c)E1. (CSCdx28347)
• With Supervisor Engine 2, any access to an invalid address in the valid I/O address space can
suspend all operation. This problem is resolved in Release 12.1(12c)E1. (CSCdx81901)
• A failure in communication between the MSFC and supervisor engine causes the MSFC to be reset
by an internal message from the supervisor engine. This problem is resolved in Release 12.1(12)E1.
(CSCdx38960)
• The drop counters on Gigabit Ethernet interfaces might incorrectly increment excessively, even
during low traffic conditions. No data is actually dropped. This problem is resolved in
Release 12.1(12c)E1. (CSCdv86024)
• Under some circumstances, the router might close an SSH session if a high volume of debug
information is flowing through the connection. This problem is resolved in Release 12.1(12c)E1.
(CSCdv09709)
• A router configured with Border Gateway Protocol (BGP) neighbor address or neighbor ibgp
peer-group name nlri unicast multicast commands does not automatically translate the no
auto-summary command into the multicast address family. This problem is resolved in
Release 12.1(12c)E1. (CSCdy04712)
• When the MPLS labeled path for a a prefix is down and an unlabeled backup path takes over, the
PFC2 is not updated to use the unlabeled backup path. This problem is resolved in
Release 12.1(12c)E1. (CSCdx90903)
• BGP prereorganization conversion at boot time does not work properly for connected or static routes
in address family IPv4 multicast. This problem is resolved in Release 12.1(12c)E1. (CSCdw39926)
• The MSFC incorrectly updates the Reverse Path Forwarding (RPF) neighbor of an (S,G) entry,
which might cause the MSFC to send (S,G) Join/Prune messages and create incorrect multicast route
entries. This problem is resolved in Release 12.1(12c)E1. (CSCdx61141)
• In a network where network devices are using different software releases, the MSFC might freeze
in the LOADING state after an area boundary router (ABR) sends OSPF link-state advertisements
(LSAs) that have an illegal mask to a neighboring network device running a newer software release.
This problem is resolved in Release 12.1(12c)E1. (CSCdx42686)
• In dispatch mode, IOS SLB might not route server-bound or firewall-bound IP trailer fragments to
the correct real server or firewall. This problem is resolved in Release 12.1(12c)E1. (CSCdx75359)
• When approximately 500 static NAT entries are configured, and the mls aclmerge algorithm odm
command is configured, a reload might occur if you enter an ip nat outside command for an active
interface. This problem is resolved in Release 12.1(12c)E1. (CSCdx74455)