Cisco OL-4015-08 Bedienungsanleitung Seite 492

  • Herunterladen
  • Zu meinen Handbüchern hinzufügen
  • Drucken
  • Seite
    / 678
  • Inhaltsverzeichnis
  • LESEZEICHEN
  • Bewertet. / 5. Basierend auf Kundenbewertungen
Seitenansicht 491
844
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S
Workaround: There is no workaround.
CSCef91030
Symptoms: After the default route is received from a remote PE for a VRF, communication stops for
traffic via the default route in this VRF on a Cisco 12000 series that functions as a PE router in an
MPLS VPN environment. The packets are switched out of the core MPLS interface untagged as
native IPv4 packets instead of with MPLS and BGP labels.
Conditions: This symptom is observed when the traffic is received from VRF interfaces on an
Engine 2 line card that is installed in a Cisco 12000 series that functions as a PE router.
The symptom occurs in Release 12.0(27)S2, Release 12.0(27)S3, and interim releases for Cisco IOS
Release 12.0(30)S. Other releases may be affected too. The symptom does not occur in
Release 12.0(24)S2.
The symptom occurs when the VRF ingress interface is configured on an Engine 2 3-port GE line
card or Engine 2 1-port OC-48 POS line card. Other line cards may be affected too. The symptom
does not occur when the VRF ingress interface is configured on a 4-port OC-3 POS Engine 0 line
card or 4-port GE ISE line card.
Workaround: There is no workaround.
CSCef91170
Symptoms: A Cisco 12000 series that has a CHOC12/DS1 ISE line card that is configured for mVPN
over multilink PPP may not maintain PIM neighbors over GRE tunnels.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S2, 12.0(27)S3, or 12.0(28)S1.
Workaround: On the multilink interface, enter the following sequence of commands:
Router(config)# interface multi1
Router(config-if)# no ip pim sparse-dense-mode
Router(config-if)# ip pim sparse-dense-mode
Doing so enables the PIM neighbor to come up across the GRE tunnel.
CSCef91475
Symptoms: A CPUHOG situation may occur intermittently on a Cisco 12000 series, causing fabric
pings to be lost and all OSPF and BGP adjacencies to be dropped.
Conditions: This symptom is observed in PRP on a Cisco 12000 series router.
Workaround: There is no workaround. However, the symptom resolves itself.
CSCef92153
Symptoms: When a VRF VLAN subinterface punts a packet such as an ARP or ICMP packet to the
CPU of the line card, the main interface is unable to process a packet such as ICMP packet that is
destined for the main interface. When BGP packets enter and leave via the main interface, a BGP
neighbor may go down.
These symptoms do not affect non-VRF subinterfaces, only the main interface. Transit packets that
pass through the main interface are not affected.
When a non-VRF VLAN subinterface punts a packet to the CPU of the line card, the main interface
may return to normal operational.
Conditions: These symptoms are observed on an Engine 4+ Gigabit Ethernet line card that is
installed in a Cisco 12000 series that runs Cisco IOS Release 12.0 (25)S. Engine 2 and Engine 3 line
cards are not affected. For the symptoms to occur, all of the following conditions must be present:
A VRF VLAN subinterface is configured on the Engine 4+ line card.
Seitenansicht 491
1 2 ... 487 488 489 490 491 492 493 494 495 496 497 ... 677 678

Kommentare zu diesen Handbüchern

Keine Kommentare