Datasheet

280
Release Notes for Cisco IOS Release 12.1E on the Catalyst 6500 and Cisco 7600 Supervisor Engine and MSFC
OL-2310-11
Caveats
Open OSM Caveats in Release 12.1(11b)E14
• PFC2-based QoS is supported on all the OSMs but has not been fully tested on the 2-port OC-12
ATM OSMs and the channelized OSMs. The PFC2 QoS CLI is not blocked for these modules, but
we do not recommend that you configure PFC2-based QoS until testing has been completed. This
problem is resolved in Release 12.1(12c)E1. (CSCdw84716)
• IGMP snooping does not function over an EoMPLS connection if the connection is made over a POS
interface. There is no workaround. This problem is resolved in Release 12.1(13)E1. (CSCdw73064)
• Transmission of IP packets between MPLS clouds over (Generic Routing Encapsulation) GRE
tunnels is not supported. This problem is resolved in Release 12.1(12c)E1. (CSCdw62753)
• In a configuration were global virtual routing and forwarding instance (VRF) routes are configured
on a 4-port Gigabit Ethernet WAN OSM, when you ping a global IP address from a customer-edge
device within a VPN, the ping fails. This failure occurs because a VRF-forwarding Gigabit Ethernet
interface can resolve ARPs in the VRF ARP table, but it cannot be in the default ARP table. This
problem is resolved in Release 12.1(12c)E1. (CSCdw74766, CSCin04666)
• If you use a subinterface on the 4-port Gigabit Ethernet WAN OSM to connect a Cisco 7600 series
router or Catalyst 6500 series switch Provider Edge to an MPLS core, the VLAN ID on the
subinterface must not coincide with the VLAN ID of the VLAN interface where the EoMPLS route
is configured.
Workaround: Assign a different VLAN ID for the subinterface. This problem is resolved in
Release 12.1(13)E1. (CSCdv79130, CSCdw61392)
Resolved OSM Caveats in Release 12.1(11b)E14
None.
Resolved OSM Caveats in Release 12.1(11b)E12
None.
Resolved OSM Caveats in Release 12.1(11b)E11
None.
Resolved OSM Caveats in Release 12.1(11b)E4
• If you unconfigure routers using an MPLS VPN test script, occasionally the interface on the provider
edge (PE) router is not to recognized after the virtual routing and forwarding instance (VRF) is
deleted. This problem is resolved in Release 12.1(11b)E4. (CSCdx10237)
• Connected VPN routes may be missing from the MPLS forwarding table. This problem is resolved
in Release 12.1(11b)E4. (CSCdx20720)
• Changes to the tagging status on links between provider to provider edge (PE) are not supported if
more than one MPLS uplink is configured and the uplinks are loadsharing. This problem is resolved
in Release 12.1(11b)E4. (CSCdx06042)
• In a topology where multiple MPLS uplinks have the same path cost, disabling MPLS IP on one of
the uplinks may cause packet loss. This problem is resolved in Release 12.1(11b)E4. (CSCdx53564)
• After stress testing, an OIR of the OSM-OC12 POS module causes POS interfaces to repeatedly
become active and inactive. This problem is resolved in Release 12.1(11b)E4. (CSCdx55544)