Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Uživatelský manuál Strana 94

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 398
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 93
540
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Workaround: This crash is seen only when GRE is accelerated by spa-ipsec-2g. If GRE is
accelerated by the SUP, the crash does not happen. This is done by default in VRF mode without any
other directives like "crypto engine mode gre vpnblade". To ensure the tunnel is adding "crypto
engine gre supervisor" in the global configuration mode and on all the tunnels that are handled by
ES20 for mpls recirculations.
As an alternative workaround, If the customer wants the GRE acceleration to be taken over by the
spa-ipsec-2g. An ACL needs configured to drop all the plain unencrypted GRE traffic between a
tunnel’s source and destination ip addresses may also be effective if applied prior to configuring the
"tunnel protection ..." command. However, this workaround may not scale in certain
configurations.<BR><BR>
As a preventive precautionary measure. A safer practice would be to configure the Customer Edge
device prior to configuring the Provider Edge. This configuration order should prevent this issue
from occuring when adding IPSec Tunnel protection to GRE Tunnels.
CSCsw50069
Symptoms: Microflow policing fails to be removed or modified on port-channel subinterface.
Conditions: Occurs on a Cisco 7600 series router with port-channel subinterface configured for
microflow policing, and the same policy configured on subinterface with encap VLAN as well as
another subinterface without encap VLAN.
Workaround: There is no workaround.
CSCsw73196
Symptoms: BGP MDT session flaps when a router running Cisco IOS is interoperating with a router
running Cisco IOS-XR and when withdrawal messages are sent by IOS to XR of previously
advertised MDT prefixes.
Conditions: MDT prefixes need to be exchanged by IOS and XR routers. If a withdrawal message
is exchanged subsequently for any reason then this problem is seen.
Workaround: There is no workaround.
CSCsw76817
Symptoms: Whenever MTU is configured under a port-channel with EVC (Ethernet Virtual Circuit),
the MTU functionality does not work as expected.
Conditions: This happens only with Layer 3 port-channels.
Workaround: There is no workaround.
Further Problem Description: Whenever a member link is added to a port-channel, the member link’s
MTU is programmed to the jumbo MTU value (default 9216). Even when a custom MTU value is
configured under port-channel, all the member links’ MTUs are programmed with 9216.
CSCsw93867
Symptoms: The following messages appear in the log after a reload:
Suspending service policy (policyname) on Multilink(#)bandwidth of 24.00% is not available
(1.00%)
bandwidth of 24.00% is not available (1.00%)
bandwidth of 24.00% is not available (1.00%)
bandwidth of 24.00% is not available (1.00%)
Zobrazit stránku 93
1 2 ... 89 90 91 92 93 94 95 96 97 98 99 ... 397 398

Komentáře k této Příručce

Žádné komentáře