Out of Resource Handling of FIB Resources
The main function of the FIB within routers/line-cards is to map destination IP prefixes/labels to potential egress interfaces. In order to achieve this, the FIB maintains multiple databases or hardware tables, such as:
-
Forward Equivalence Class (FEC) and the Equal Cost Multi-Path Forward Equivalence Class (ECMP FEC): This database mainly stores information related to the IPv4 and IPv6 prefixes that the router has learnt. When a traffic packet reaches the router, it performs a FIB lookup on the destination prefix of the incoming packet. This lookup results in the FEC or ECMP FEC object for that particular prefix and it provides information about the egress interface on the router through which the packet can reach its destination.
-
Egress Encapsulation Data Base (EEDB): This database stores adjacency details such as the link-local details from Address Resolution Protocol (ARP) or Neighbor Discovery (ND) Protocol, Multiprotocol Label Switching (MPLS) labels, Generic Routing Encapsulation (GRE) headers and so on.
OOR Protection Mode
When the FIB resource usage exceeds the red threshold, the system enters OOR protection mode.
In FEC OOR protection mode, the router doesn’t allocate any FEC objects when it learns a new prefix, but assigns a pre-created drop FEC instead. The router drops incoming packets with destination IP addresses that were assigned the drop FEC.
In ECMP FEC OOR protection mode, the router chooses only the first path among multiple paths to forward traffic. When FEC or ECMP FEC usage drops below yellow threshold, the router reprograms the affected prefixes to normal FEC or ECMP FEC. Thereafter, the router resumes traffic flow.
In EEDB OOR protection mode, the router will not program any more egress enacapsulation information. This in turn results in traffic drop. When EEDB usage drops below yellow threshold, the router resumes programing new egress encapsulation data as well as traffic flow.
Configuration Steps to Change OOR Threshold Levels
The following section shows how to change the default threshold levels for OOR handling.
Router# conf t
Router(config)# oor hw threshold red 90
Router(config)# oor hw threshold yellow 75
Router(config)# commitRelease Stale FEC Resources
To release the stale FEC resources, execute the following command:
Router# clear cefVerification of FEC Resources
|
Feature Name |
Release Information |
Feature Description |
|---|---|---|
|
Hierarchical Forward Equivalence Class (HFEC) Out of Resource (OOR) Enhancements |
Release 7.5.1 |
With this enhancement, you can view the details of the utilization of Forwarding Information Base (FIB) hardware resources, such as hierarchical FEC and hierarchical Equal Cost Multi-Path (ECMP) FEC, in the output of the command show controllers npu resources. This feature also enables the router to display system logs on the console that alert you when FEC resources have crossed the OOR threshold levels. These logs help you to take corrective action and free up FEC resources, to minimize traffic loss. . |
Use the show controllers npu resources command to verify FIB resources.
The OOR State in the output of the show controllers npu resources command changes when the router reaches an OOR situation. The OOR State changes from Green to Yellow, and finally to Red depending on the utilization of FEC or ECMP FEC resources.
Router# show controllers npu resources fec location 0/0/CPU0
HW Resource Information
Name : fec
Asic Type : Qumran
NPU-0
OOR Summary
Estimated Max Entries : 126976
Red Threshold : 95 %
Yellow Threshold : 80 %
OOR State : Green
Bank Info : FEC
OFA Table Information
(May not match HW usage)
ipnhgroup : 43058
ip6nhgroup : 2
edpl : 0
limd : 0
punt : 19
iptunneldecap : 0
ipmcroute : 1
ip6mcroute : 0
ipnh : 0
ip6nh : 0
mplsmdtbud : 0
ipvrf : 2
ippbr : 0
redirectvrf : 0
l2protect : 0
l2bridgeport : 0
Current Hardware Usage
Name: fec
Estimated Max Entries : 126976
Total In-Use : 43082 (33 %)
OOR State : Green
Bank Info : FEC
Name: hier_0
Estimated Max Entries : 126976
Total In-Use : 43082 (33 %)
OOR State : Green
Bank Info : FECFIB has three FEC hierarchies and 3 ECMP FEC hierarchies. From Cisco IOS XR Release 7.5.1 onwards, you can view these hierarchies in the output of the commands show controllers npu resources fec and show controllers npu resources ecmpfec . The router records the OOR State of each of these hierarchies in the command outputs.
Router# show controllers npu resources fec location 1/0/CPU0
HW Resource Information
Name : fec
Asic Type : Jericho 2
NPU-0
OOR Summary
Estimated Max Entries : 576704
Red Threshold : 95 %
Yellow Threshold : 80 %
OOR State : Green
Bank Info : FEC
OFA Table Information
(May not match HW usage)
ipnhgroup : 157800
ip6nhgroup : 17377
edpl : 0
limd : 0
punt : 18
iptunneldecap : 0
ipmcroute : 1
ip6mcroute : 0
ipnh : 0
ip6nh : 0
mplsmdtbud : 0
ipvrf : 1053
ippbr : 0
redirectvrf : 1
l2protect : 42
l2bridgeport : 58
Current Hardware Usage
Name: fec
Estimated Max Entries : 576704
Total In-Use : 176350 (30 %)
OOR State : Green
Bank Info : FEC
Name: hier_0
Estimated Max Entries : 131072
Total In-Use : 3207 (2 %)
OOR State : Green
Bank Info : H1 FEC
Name: hier_1
Estimated Max Entries : 262144
Total In-Use : 63 (0 %)
OOR State : Green
Bank Info : H2 FEC
Name: hier_2
Estimated Max Entries : 183488
Total In-Use : 173080 (94 %)
OOR State : Yellow
OOR State Change Time : 2021.Aug.29 22:14:16 PDT
Bank Info : H3 FECRouter# show controllers npu resources ecmpfec location 0/0/CPU0
HW Resource Information
Name : ecmp_fec
Asic Type : Jericho 2
NPU-0
OOR Summary
Estimated Max Entries : 32768
Red Threshold : 95 %
Yellow Threshold : 80 %
OOR State : Yellow
OOR State Change Time : 2021.Aug.29 23:07:53 PDT
Bank Info : ECMP
OFA Table Information
(May not match HW usage)
ipnhgroup : 30654
ip6nhgroup : 4
Current Hardware Usage
Name: ecmp_fec
Estimated Max Entries : 32768
Total In-Use : 30658 (93 %)
OOR State : Yellow
OOR State Change Time : 2021.Aug.29 23:07:53 PDT
Bank Info : ECMP
Name: hier_0
Total In-Use : 0
OOR State : Green
Bank Info : H1 ECMP
Name: hier_1
Total In-Use : 1
OOR State : Green
Bank Info : H2 ECMP
Name: hier_2
Total In-Use : 30657
OOR State : Yellow
OOR State Change Time : 2021.Aug.29 23:07:53 PDT
Bank Info : H3 ECMPSystem Log Alerts for HFEC OOR
When utilization of any of the FEC or ECMP FEC hierarchies transition from the current OOR state to another state, the router generates system logs to alert the user. You can then take corrective action if the router is approaching OOR state to ensure that FEC resources get freed up before traffic loss takes place.
LC/0/0/CPU0: fia_driver[170]: %PLATFORM-OFA-1-OOR_RED : NPU 0, Table ipnhgroup, Resource fec
LC/0/0/CPU0: fia_driver[170]: %PLATFORM-OFA-4-OOR_YELLOW : NPU 0, Table ipnhgroup, Resource fec
LC/0/0/CPU0: fia_driver[170]: %PLATFORM-OFA-5-OOR_GREEN : NPU 0, Table ipnhgroup, Resource fec
LC/0/0/CPU0: fia_driver[140]: %PLATFORM-OFA-4-OOR_YELLOW : NPU 0, Table ipnhgroup, Resource ecmp_fec
LC/0/0/CPU0: fib_mgr[133]: %PLATFORM-PLAT_FIB-4-OOR_PROT_STOP_WARNING : ECMP_FEC resources are now available. OOR protection stopped
LC/0/0/CPU0: fia_driver[140]: %PLATFORM-OFA-5-OOR_GREEN : NPU 0, Table ipnhgroup, Resource ecmp_fecVerification of EEDB Resources
|
Feature Name |
Release Information |
Feature Description |
|---|---|---|
|
EEDB Resource Segregation for Encapsulation Types |
Release 7.8.1 |
We have now segregated the Egress Encapsulation Database (EEDB) resources based on different egress encapsulation types, such as attachment circuits (AC), pseudowires, tunnels, and Address Resolution Protocol (ARP). This allows you to examine encapsulation-specific resource details using show commands. When resource usage exceeds the Out of Resource (OOR) threshold levels, the router also alerts you with system log messages. When resource usage exceeds the OOR thresholds, you can avoid traffic loss by taking corrective action to free up resources, such as reducing the scale of interfaces with the related encapsulation. The show controllers npu resources command is now modified to include the following optional keywords:
This feature is supported on Cisco 5700 Series Routers and on routers that have the NC57 line cards installed and operating in either native or compatiblity mode |
|
Verification of EEDB OOR |
Release 7.6.1 |
If the Egress Encapsulation Database (EEDB) resources exceed the Out of Resource (OOR) threshold levels, the router generates system logs that indicate the resource utilization of EEDB hardware. With these details, you can take corrective action by freeing up EEDB resources, thereby minimizing traffic loss. This feature also updates the show output of the following command to display utilization of EEDB hardware resources: |
The router processes several entries and often stores these entries in the form of tables. These tables are further divided into smaller tables. These smaller tables are called as banks. The banks are often named as bank_0, bank_1, bank_2, and so on. Router segregates the entries through these banks.
 Note |
bank_0 will always be indicated as completely utilized and in Red OOR state on the following routers and line cards:
This complete utilization of bank_0 must be ignored since it is reserved for internal usage regardless of the router configuration. |
Use show controllers npu resources encap command to verify the usage of EEDB resources.
The OOR State in the output of the show controllers npu resources encap command changes when the router reaches an OOR situation. The OOR State changes from Green to Yellow, and finally to Red depending on the utilization of the EEDB resources.
Router# show controllers npu resources encap location 1/0/CPU0
HW Resource Information
Name : encap
Asic Type : Jericho
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
ipnh : 13
ip6nh : 0
mplsnh : 0
llnh : 0
srv6nh : 0
ipvrf : 0
mplsmdtbud : 0
iptunnelencap : 0
tep : 0
Current Hardware Usage
Name: encap
Name: bank_0
Estimated Max Entries : 4096
Total In-Use : 4096 (100 %)
OOR State : Red
OOR State Change Time : 2022.Mar.15 05:33:14 UTC
Bank Info : phase=2 extended=no
Name: bank_1
Estimated Max Entries : 4096
Total In-Use : 4 (0 %)
OOR State : Green
Bank Info : phase=8 extended=no
Name: bank_2
Estimated Max Entries : 4096
Total In-Use : 0 (0 %)
OOR State : Green
Bank Info : phase=0 extended=no
Name: bank_3
Estimated Max Entries : 4096
Total In-Use : 0 (0 %)
OOR State : Green
Bank Info : phase=0 extended=no
From Cisco IOS XR Release 7.6.1 onwards, the output of the command show controllers npu resources encap has been enhanced to provide more fields such as Current Hardware Usage and Cluster Bank Pair details.
Router# show controllers npu resources encap location 1/0/CPU0
HW Resource Information
Name : encap
Asic Type : Jericho Two
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
ipnh : 13
ip6nh : 0
mplsnh : 0
llnh : 0
srv6nh : 0
ipvrf : 0
mplsmdtbud : 0
iptunnelencap : 0
tep : 0
Current J2 Hardware Usage
Cluster Bank Pair: EEDB_S2_XL
Max-Entries : 163840
Total In-use : 0
Logical_phase : 1 (Encap_Rif)
Cluster Bank
Bank Size : S2
Estimated Max Entries : 163840
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 8192
OOR State : Green
Total In-Use : 0
Logical_phase : 6 (Tunnel4)
Cluster Bank
Bank Size : XL
Estimated Max Entries : 122880
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 61440
OOR State : Green
Total In-Use : 0
Cluster Bank Pair: EEDB_L1_S1
Max-Entries : 98304
Total In-use : 26
Logical_phase : 2 (Encap_NativeArp)
Cluster Bank
Bank Size : L1
Estimated Max Entries : 81920
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 30720
OOR State : Green
Total In-Use : 0
Logical_phase : 8 (Encap_Ac)
Cluster Bank
Bank Size : S1
Estimated Max Entries : 98304
OOR State : Green
Total In-Use : 26
EEDB Bank:
Estimated Max Entries : 8192
OOR State : Green
Total In-Use : 0
Cluster Bank Pair: EEDB_M1_M2
Max-Entries : 131072
Total In-use : 62
Logical_phase : 3 (Encap_NativeAc or Tunnel1)
Cluster Bank
Bank Size : M1
Estimated Max Entries : 122880
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0 EEDB Resource Segregation for Encapsulation Types
Starting from Cisco IOS XR Release 7.8.1, we have segregated EEDB resources based on different egress encapsulation types. Cisco IOS XR software now provides encapsulation specific EEDB resource usage for the following egress encapsulation types:
-
Attachment Circuits (AC)
-
Pseudowires
-
ARP packets
-
Tunnels
To view the EEDB resource details for AC, use the command show controllers npu resources encapAC .
Router# show controllers npu resources encapAC location 0/RP0/CPU0
HW Resource Information
Name : encap_AC
Asic Type : Jericho Two
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
ip6nh : 0
ipmctxintf : 0
l2intf : 0
l2port : 0
Current J2 Hardware Usage
Cluster Bank Pair: EEDB_S1_L1
Max-Entries : 98304
Total In-use : 18
Logical_phase : 8 (Encap_Ac)
Cluster Bank
Bank Size : S1
Estimated Max Entries : 98304
OOR State : Green
Total In-Use : 18
EEDB Bank:
Estimated Max Entries : 8192
OOR State : Green
Total In-Use : 0
Logical_phase : 2 (Encap_NativeArp)
Cluster Bank
Bank Size : L1
Estimated Max Entries : 81920
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 30720
OOR State : Green
Total In-Use : 0To view the EEDB resource details for pseudowires, use the command show controllers npu resources encapPWE .
Router# show controllers npu resources encapPWE location 0/RP0/CPU0
HW Resource Information
Name : encap_PWE
Asic Type : Jericho Two
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
mplspweport : 0
l2bridgeolist : 0
Current J2 Hardware Usage
Cluster Bank Pair: EEDB_L1_S1
Max-Entries : 98304
Total In-use : 18
Logical_phase : 2 (Encap_NativeArp)
Cluster Bank
Bank Size : L1
Estimated Max Entries : 81920
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 30720
OOR State : Green
Total In-Use : 0
Logical_phase : 8 (Encap_Ac)
Cluster Bank
Bank Size : S1
Estimated Max Entries : 98304
OOR State : Green
Total In-Use : 18
EEDB Bank:
Estimated Max Entries : 8192
OOR State : Green
Total In-Use : 0
To view the EEDB resource details for tunnels, use the command show controllers npu resources encaptunnels .
Router# show controllers npu resources encaptunnels location 0/RP0/CPU0
HW Resource Information
Name : encap_tunnels
Asic Type : Jericho Two
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
mplsnh : 0
mplspweport : 0
iptunnelencap : 0
limd : 0
ipmcmdtencap : 0
srv6nh : 0
Current J2 Hardware Usage
Cluster Bank Pair: EEDB_S2_XL
Max-Entries : 163840
Total In-use : 0
Logical_phase : 1 (Encap_Rif)
Cluster Bank
Bank Size : S2
Estimated Max Entries : 163840
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 8192
OOR State : Green
Total In-Use : 0
Logical_phase : 6 (Tunnel4)
Cluster Bank
Bank Size : XL
Estimated Max Entries : 122880
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 63488
OOR State : Green
Total In-Use : 0
Cluster Bank Pair: EEDB_M1_M2
Max-Entries : 131072
Total In-use : 58
Logical_phase : 3 (Encap_NativeAc or Tunnel1)
Cluster Bank
Bank Size : M1
Estimated Max Entries : 122880
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0
Logical_phase : 7 (Encap_Arp)
Cluster Bank
Bank Size : M2
Estimated Max Entries : 131072
OOR State : Green
Total In-Use : 58
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0
Cluster Bank Pair: EEDB_L2_M3
Max-Entries : 65536
Total In-use : 2
Logical_phase : 4 (Encap_Tunnel2)
Cluster Bank
Bank Size : L2
Estimated Max Entries : 57344
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 30720
OOR State : Green
Total In-Use : 0
Logical_phase : 5 (Tunnel3)
Cluster Bank
Bank Size : M3
Estimated Max Entries : 65536
OOR State : Green
Total In-Use : 2
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0
To view the EEDB resource details for ARP, use the command show controllers npu resources encapARP .
Router# show controllers npu resources encapARP location 0/RP0/CPU0
HW Resource Information
Name : encap_ARP
Asic Type : Jericho Two
NPU-0
OOR Summary
Red Threshold : 95 %
Yellow Threshold : 80 %
OFA Table Information
(May not match HW usage)
ipvrf : 0
redirectvrf : 0
ipnh : 0
ip6nh : 0
mplsmdtbud : 0
llnh : 0
Current J2 Hardware Usage
Cluster Bank Pair: EEDB_M2_M1
Max-Entries : 131072
Total In-use : 58
Logical_phase : 7 (Encap_Arp)
Cluster Bank
Bank Size : M2
Estimated Max Entries : 131072
OOR State : Green
Total In-Use : 58
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0
Logical_phase : 3 (Encap_NativeAc or Tunnel1)
Cluster Bank
Bank Size : M1
Estimated Max Entries : 122880
OOR State : Green
Total In-Use : 0
EEDB Bank:
Estimated Max Entries : 16384
OOR State : Green
Total In-Use : 0 System Log Alerts for EEDB OOR
When utilization of EEDB resources transition from the current OOR state to another state, the router generates system logs to alert the user. You can then take corrective action if the router is approaching OOR state to ensure that EEDB resources get freed up before traffic loss takes place.
The router logs the following log messages to inform you of the OOR state of the encap resource when it exceeds thresholds. The syslog also indicates the Network Processing Unit (NPU) of the affected encap resource, which is NPU0, in this case.
LC/0/0/CPU0: fia_driver[164]: %PLATFORM-OFA-4-OOR_YELLOW : NPU 0, Table mplsnh, Resource encap
LC/0/0/CPU0: fia_driver[164]: %PLATFORM-OFA-1-OOR_RED : NPU 0, Table mplsnh, Resource encap Starting from Cisco IOS XR Release 7.8.1, the router logs the following GRID alarm log message and NPU OOR alarm log message when the encapsulation specific EEDB resource exceeds thresholds.
LC/0/0/CPU0: grid_svr[450]: %L2-GRID-4-BANK_ALARM_STATE_YELLOW : GRID POOL: GLIF (id:2), BANK 0 has state changed from Green to Yellow.
LC/0/0/CPU0: fia_driver[228]: %PLATFORM-OFA-4-OOR_YELLOW : NPU 0, Table ipnh, Resource encap_ARPOut of Resource Handling of Input Logical Interface and Router Interface Resources
|
Feature Name |
Release Information |
Feature Description |
|---|---|---|
|
Out of Resource Handling of Input Logical Interface and Router Interface Resources |
Release 7.7.1 |
You can now reconfigure the threshold level for NPU resources - Input Logical Interface (INLIF) and Router Interface (RIF) by changing the predefined threshold level at which Out of Resource (OOR) situation is triggered. Graceful handling of OOR helps you to minimize traffic loss. You get notified via systemlogs, when the utilization of resources reaches their OOR limit. Also, you can view the utilization of resources by using the following commands: |
INLIF: This resource is part of Logical Interface (LIF) and mainly stores several IP-related attributes. INLIF stores information about the following:
-
Layer 2 ports
-
Layer 2 interface
-
IP virtual routing and forwarding
-
Layer 2 bridge
-
Layer 2 cross connect
-
MPLS
-
MPLS Multicast Distribution Tree (MDT) bud
-
IP tunnel decapsulation
-
Policy-based routing IPv4
-
Redirect virtual routing and forwarding
RIF: This resource stores information about routing interfaces and Virtual Switching Interfaces (VSI). Routing interface consists of a port at which a router connects to the given network. RIF stores information about the following:
-
Layer 3 interface
-
IP virtual routing and forwarding
-
IP tunnel decapsulation
-
Layer 2 bridge
-
Policy-based routing IPv4
-
Policy-based routing IPv6
-
Layer 2 bridge
-
Redirect virtual routing and forwarding
-
MPLS Multicast Distribution Tree (MDT) bud
Cisco IOS XR Software Release 7.7.1 introduces the graceful handling of INLIF and RIF resources under NPU.You can redefine the threshold levels of OOR to change the triggering of OOR notification.
To change OOR threshold levels for INLIF and RIF, refer section Configuration Steps to Change OOR Threshold Levels in this chapter.
Verification
The OOR State in the output of the show controllers npu resources and show grid pool command changes when the router reaches an OOR situation. The OOR State changes from Green to Yellow, and finally to Red depending on the utilization of INLIF and RIF resources.
Use the following commands to check the utilization of NPU resources:
-
show controllers npu resources
-
show grid pool
Router#show controllers npu resources INLIF1 location 0/3/CPU0
HW Resource Information
Name : INLIF1
Asic Type : Jericho Two
NPU-0
OOR Summary
Estimated Max Entries : 21846
Red Threshold : 95 %
Yellow Threshold : 75 %
OOR State : Green
Bank Info : INLIF1
OFA Table Information
(May not match HW usage)
l2port : 12
l2intf : 0
ipvrf : 1
l2bridge : 0
mplsmdtbud : 0
Current Hardware Usage
Name: INLIF1
Estimated Max Entries : 100
Total In-Use : 13 (13 %)
OOR State : Green
Bank Info : INLIF1
NPU-1
OOR Summary
Estimated Max Entries : 21846
Red Threshold : 95 %
Yellow Threshold : 75 %
OOR State : Green
Bank Info : INLIF1
OFA Table Information
(May not match HW usage)
l2port : 12
l2intf : 0
ipvrf : 1
l2bridge : 0
mplsmdtbud : 0
Current Hardware Usage
Name: INLIF1
Estimated Max Entries : 100
Total In-Use : 13 (13 %)
OOR State : Green
Bank Info : INLIF1
Router#show controllers npu resources INLIF2 location 0/3/CPU0
HW Resource Information
Name : INLIF2
Asic Type : Jericho Two
NPU-0
OOR Summary
Estimated Max Entries : 100
Red Threshold : 95 %
Yellow Threshold : 75 %
OOR State : Green
Bank Info : INLIF2
OFA Table Information
(May not match HW usage)
mplsmdtbud : 0
l2xc : 0
mplslabel : 0
iptunneldecap : 0
pbr_tt_ipv4 : 0
redirectvrf : 0
mplspweport : 0
srv6sid : 0
Current Hardware Usage
Name: INLIF2
Estimated Max Entries : 21846
Total In-Use : 0 (0 %)
OOR State : Green
Bank Info : INLIF2
NPU-1
OOR Summary
Estimated Max Entries : 21846
Red Threshold : 95 %
Yellow Threshold : 75 %
OOR State : Green
Bank Info : INLIF2
OFA Table Information
(May not match HW usage)
mplsmdtbud : 0
l2xc : 0
mplslabel : 0
iptunneldecap : 0
pbr_tt_ipv4 : 0
redirectvrf : 0
mplspweport : 0
srv6sid : 0
Current Hardware Usage
Name: INLIF2
Estimated Max Entries : 100
Total In-Use : 0 (0 %)
OOR State : Green
Bank Info : INLIF2
You can also check the utilization of resources within a bank by using the show grid pool command. This command gives you detailed information about the current state of banks in each resource.
Note |
Yang data model support is not available for show grid pool . |
Router#show grid pool 1 bank all
Tue Jul 26 11:44:24.960 UTC
Bank Ptr : 0x308ca4bd50
Bank ID : 0
Pool : RIF (id 1)
Bank Start : -1
Bank End : -1
Max Bank Size : 1
Max Resource Pages : 1
Available resource IDs : 1 (100.000% free)
Alarm state : Green
Bank statistics: Success Error (since last clear)
Resource IDs reserved 0 0 0 0
Resource IDs returned 0 0 0 0
Bank Ptr : 0x308ca4bdb8
Bank ID : 1
Pool : RIF (id 1)
Bank Start : 6
Bank End : 8192
Max Bank Size : 8187
Max Resource Pages : 256
Available resource IDs : 8119 (99.169% free)
Alarm state : Green
HW Resources:
RIF_VSI
Bank statistics: Success Error (since last clear)
Resource IDs reserved 986 0 986 0
Resource IDs returned 918 0 918 0
Client : vlan-fib
Resource IDs reserved 933 0 933 0
Resource IDs returned 865 0 865 0
current usage : 68
Client : ip-tunnel
Resource IDs reserved 32 0 32 0
Resource IDs returned 32 0 32 0
current usage : 0
Client : redirectvrf
Resource IDs reserved 1 0 1 0
Resource IDs returned 1 0 1 0
current usage : 0
Client : l2vpn-mgr
Resource IDs reserved 20 0 20 0
Resource IDs returned 20 0 20 0
current usage : 0
System Log Alerts for INLIF and RIF OOR
When utilization of resources in NPU transition from the current OOR state to another state, the router generates system logs to alert you to free up the resources before traffic loss occurs.
RP/0/RP0/CPU0:Jun 2 17:54:43.264 UTC: grid_svr[194]: %L2-GRID-4-BANK_ALARM_STATE_YELLOW : GRID POOL: RIF (id:1), BANK 0 has state changed from Green to Yellow. LC/0/3/CPU0: fia_driver[231]: %PLATFORM-OFA-4-_OOR_YELLOW : NPU 0, Table mplsnh, Resource INLIF1
LC/0/3/CPU0: UTC: fia_driver[231]: %PLATFORM-OFA-4-_OOR_YELLOW : NPU 1, Table mplsnh, Resource rif
LC/0/3/CPU0: UTC: fia_driver[231]: %PLATFORM-OFA-4-_OOR_YELLOW : NPU 0, Table mplsnh, Resource rif
LC/0/3/CPU0:Apr 12 18:04:08.221 UTC: fia_driver[231]: %PLATFORM-OFA-5-_OOR_GREEN : NPU 1, Table mplsnh, Resource INLIF1
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