Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 40

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486
Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Further Problem Description: The root cause is that several pieces of code are enqueuing packets to
ipsocktype InQ without checking its size, and without updating statistics.
CSCso86544
Symptoms: After an SSO the new active SP crashes at pm_vlan_get_portlist.
Conditions: The symptom is observed after an SSO and is triggered by an OIR offline.
Workaround: There is no workaround.
CSCsq11897
Symptoms: A crash is seen when the interface board is removed.
Conditions: The symptom is observed in a very rare scenario when a BGP session is established and
the corresponding interface board is removed.
Workaround: There is no workaround.
CSCsq68156
Symptoms: FRF12 packets are dropped by a PE router.
Conditions: This symptom is observed on a Cisco 12000 series Internet router that has a
SPA-1XCHSTM1/OC3, SPA-2XCT3/DS0, or SPA-8XCHT1/E1.
Workaround: There is no workaround.
CSCsq82663
Symptoms: Very high CPU utilization observed under a ~400 MB traffic load on a
Cisco Catalyst 6503-E or 6504-E switch with the Cisco IOS Server Load Balancing (SLB) feature.
Conditions: The symptom is observed when the SLB feature is deployed on a Cisco Catalyst 6503-E
or 6504-E switch, for DMVPN hubs load balancing for branches (spokes) using OC12 POS SPA as
the WAN interface. When traffic is sent from the branch to the networks behind hubs, SLB is not
able to install the shortcuts for hardware switching for ingress POS WAN port. The packets are
process switched, which increases CPU usage dramatically.
Workaround: There is no workaround.
CSCsq83789
Symptoms: Some L3 interfaces have the wrong LTL programmed for Unknown Unicast.
Conditions: The symptom is observed in a chassis with a SPA-IPSEC-2G card.
Workaround: There is no workaround.
CSCsr47527
Symptoms: The following errors will prevent a standby processor from reaching Hot Standby (full
SSO).
Config Sync: Bulk-sync failure due to Servicing Incompatibility. Please check full
list of mismatched commands via: show redundancy config-sync failures mcl
Config Sync: Starting lines from MCL file: -
Conditions: This symptom is most often seen during an ISSU upgrade.
Workaround:
1. Let the Standby come up in RPR mode after MCL mismatch.
2. Then apply the redundancy config-sync ignore mismatched-commands command in exec
mode on Active.
3. Now change the redundancy mode to SSO on Active. The setup will come up in SSO mode.
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