What does the command shown below accomplish? ServerIron(debug-filter-spec-1)# pattern 24 2 1203

Nina C.May 14, 2026

The answer is A, because the syntax for the pattern command goes offset first, then length, then the hex pattern, so "pattern 24 2 1203" means start at byte offset 24 from the beginning of the packet and match 2 bytes worth of the pattern 1203. Options C and D try to say "end of the packet," which flips the offset direction and does not match how ServerIron reads that command.

Anjali D.Apr 18, 2026

Answer is A. The "pattern" command takes a length and an offset from the beginning of the packet, so "pattern 24 2 1203" is telling the filter to capture packets containing a 24-bit pattern starting 2 bytes from the start of the packet, which matches what A describes. B, C, and D each swap in wrong terms like "field" or "end of the packet," which is not how this command works.

Toby R.May 22, 2026

C trips people up because "offset from the end" sounds like it could make sense for some filtering scenarios, but the command syntax here is offset from the beginning of the packet, so A is correct even though the answer text looks like it got cut off in whatever database this came from.

Prof. SaraMar 23, 2026

A is correct, and the syntax locks it in: the three arguments after "pattern" map to offset, length, and value in that order, so "24 2 1203" means find the two-byte value 1203 starting at byte offset 24 counted from the beginning of the packet. Remember the mnemonic OLV, Offset then Length then Value, and you will never mix up which direction the offset counts from.

Yusuf A.May 10, 2026

Yeah A is right, the numbers in that command map to offset and length measured from the start of the packet, not the end. My senior showed me that the first argument after "pattern" is the byte offset from the beginning, so 24 here means it starts looking 24 bytes in before checking for that 2-byte value 1203.

Haruki E.Apr 1, 2026

I initially leaned toward C because "offset from the end" sounded plausible given how some debug filter implementations count backwards, but then I went back to the Brocade ServerIron traffic filter docs and confirmed that the offset in the pattern command is always measured from the beginning of the packet, not the end, which locks in A. The syntax "pattern 24 2 1203" maps to pattern-id, offset from start, length, value, so "starting from a specified offset from the beginning of the packet" is the only accurate description here.

Carlos M.Apr 6, 2026

The offset value in that command counts from the end of the packet, not the beginning, which is exactly what option C describes. Pattern 24 gives you the length and 2 gives the offset position measured from the packet tail, so C lines up perfectly with how that syntax actually works.