Datasheet

143
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
• In a multicast virtual private network (MVPN) environment with a provider edge (PE) router
configuration and with the ip pim register-rate-limit global configuration command enabled, PIM
register messages might not be sent for the default multicast distribution tree (MDT) to its
rendezvous point (RP). This situation prevents PE routers from establishing PIM adjacencies with
other PE routers in the MVPN. This problem is resolved in Release 12.1(26)E4. (CSCea59359)
Resolved General Caveats in Release 12.1(26)E3
• Cisco IOS may permit arbitrary code execution after exploitation of a heap-based buffer overflow
vulnerability. Cisco has included additional integrity checks in its software, as further described
below, that are intended to reduce the likelihood of arbitrary code execution.
Cisco has made free software available that includes the additional integrity checks for affected
customers.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20051102-timers.shtml.
This problem is resolved in Release 12.1(26)E3. (CSCei61732)
• Receipt of a Border Gateway Protocol (BGP) Autonomous System (AS) path with a length that is
equal to or greater than 255 might reset the BGP session. This problem is resolved in
Release 12.1(26)E3. (CSCeh13489)
Resolved General Caveats in Release 12.1(26)E2
• If you are using the Open Shortest Path First (OSPF) protocol and the Catalyst 6500 series switch
or the Cisco 7600 series router is an Area Border Router (ABR) attached to one or more
not-so-stubby areas (NSSAs), the configuration of “summary-address 0.0.0.0 0.0.0.0” can result in
the ABR default summary Link State Advertisement (LSA) being repeatedly flushed and
reoriginated in each attached NSSA. This problem is resolved in Release 12.1(26)E2.
(CSCdx83438)
• If a VPN routing/forwarding instance (VRF) static route points to a default route, an aggregate
MultiProtocol Label Switching (MPLS) label is not applied. If this route address is redistributed, a
VRF lookup is not performed and traffic is forwarded to the default interface and dropped. This
problem is resolved in Release 12.1(26)E2. (CSCdy79465)
• When you use an snmpget command for an interface index below .1.3.6.1.2.1.31.1.1.1.6, the system
responds with the following information:
ifMIB.ifMIBObjects.ifXTable.ifXEntry.ifHCInOctets.12 : VARBIND EXCEPTION: No Such
Instance.
However, an snmpwalk executes successfully for an interface index below .1.3.6.1.2.1.31.1.1.1.6.
This problem is resolved in Release 12.1(26)E2.(CSCef79968)
• After multiple RPR+ switchovers, additional SNMP version 3 configurations might be added to the
configuration file. This problem is resolved in Release 12.1(26)E2. (CSCeg00304)
• If you insert a CSM in a running system, and then reset the module by entering the hw-module
module module slot number reset command, the active supervisor engine resets. This problem is
resolved in Release 12.1(26)E2. (CSCeg77264)
• A routing table entry for a Cisco IOS Server Load Balancing (SLB) virtual server is removed when
the IP address of the virtual server is advertised as active for the host route and the backup server
farm takes over. As a result, connectivity is lost to the backup server farm virtual server and its real
servers. This problem is resolved in Release 12.1(26)E2.(CSCeh17417)