All MIBs › CODIMA-EXPRESS-MIB › ipsiFragRequired
ipsiFragRequired
Module: CODIMA-EXPRESS-MIB
OID (symbolic): CODIMA-EXPRESS-MIB::ipsiFragRequired
OID (numeric): 1.3.6.1.4.1.226.3.2.1.1.6.2.3.1.16
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of Fragmentation Needed Report Frames with Don't fragment bit set. A value of 4294967294 indicates unknown.
What is ipsiFragRequired?
This read-only Counter32 counts ICMP "Fragmentation Needed but Don't-Fragment bit set" messages exchanged between the two peer addresses, which occur when a packet is too large for a link's MTU. A rising count signals a path-MTU mismatch between these two hosts that could be silently dropping large packets if PMTU discovery isn't handled correctly. For example, an increase in ipsiFragRequired after a host starts tunneling traffic through a VPN with a smaller MTU would explain intermittent large-transfer failures between it and its peer.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.226.3.2.1.1.6.2.3.1.16 snmpwalk -v2c -c public <target> CODIMA-EXPRESS-MIB::ipsiFragRequired
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.226.3.2.1.1.6.2.3.1.16.1 snmpget -v2c -c public <target> CODIMA-EXPRESS-MIB::ipsiFragRequired.1
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OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.226 | codima | CODIMA-GLOBAL-REG |
| 1.3.6.1.4.1.226.3 | codimaProducts | CODIMA-GLOBAL-REG |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.226.3.2 | codimaExpressMIB | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1 | codimaExpressObjects | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1 | expHistoryDatabases | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1.6 | dbIPv4Peer | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1.6.2 | ipPeerShortTerm | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1.6.2.3 | ipsIcmpTable | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1.6.2.3.1 | ipsIcmpEntry | CODIMA-EXPRESS-MIB |
| 1.3.6.1.4.1.226.3.2.1.1.6.2.3.1.16 | ipsiFragRequired | CODIMA-EXPRESS-MIB |