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Caveats
CSCtg83631
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If an X2 or SFP is in an inactive uplink port on a Supervisor Engine V-10GE, Supervisor II+10GE,
Supervisor 6-E, or Supervisor 6-LE, it may cause threshold violations to be reported once every 10
minutes.
Workaround: Remove the X2 or SFP from the port. CSCth08212
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When Fallback WebAuth and Multi-host are configured on a port and no PACL exists, permit ip
any any is installed in the TCAM and all traffic from the host is allowed to pass.
Workaround: Configure an ACL on the port. CSCte18760
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After you have enabled EPM logging and the client is authenticated via MAB or Webauth, the value
of AUTHTYPE is DOT1X in EPM syslog messages irrespective of the authentication method.
Similarly, the show epm sessions command always displays the authentication method as DOT1X.
Workaround: To view the authentication method used for a client, enter the
show authentication sessions command. CSCsx42157
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With CFM enabled globally as well as on an ingress interface, CFM packets received on the interface
are not policed with hardware control plane policing.
Workaround: None. (CSCso93282)
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If host-mode multi-domain is configured and authorization succeeds, traffic may not pass from an
IP phone or a data device.
Workaround: None. CSCtj56811
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A switch may crash while loading BGP routes if the ip cef accounting non-recursive command is
already configured.
Workaround: Disable the ip cef accounting non-recursive command.
(CSCtn68186)
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When a switch is configured for MAC Authentication Bypass (MAB) EAP and the AAA server
requests EAP-TLS (as the EAP method) first, MAB fails.
Workarounds:
– Configure the switch port for mab rather than mab eap.
– Configure the AAA server to propose EAP-MD5 first rather than EAP-TLS for MAB EAP
requests. CSCti78674
Supervisor Engine 6-E and Supervisor Engine 6L-E Specific Caveats
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A Catalyst 4500 series switch with Supervisor Engine 6-E supports a maximum of 32 MTU values
system wide.
On a switch running Cisco IOS Release 12.2(40)SG, all MTU values configured on a line card are
set to default when the module is reset. MTU values are not retained for modules that are physically
moved.
Workaround: None. (CSCsk52542)
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Occasionally, if you use an X2 SR transceiver on a WS-X4706-10GE running
Cisco IOS Release 12.2(40)SG, you observe CRC errors after a reload or power cycle upon inserting
the card or X2.
Workaround: Reinsert the X2. (CSCsk43618)
Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Releases 12.2(54)SG to 12.2(37)SG
84
OL-5184-91